BOEING Assignment Example | Topics and Well Written Essays - 3750 words

BOEING - Assignment Example The Boeing Company has a long history dating back to 1916, when the founder of the company, William Boeing launched a company Pacific Aero Products. The next year the company was renamed to Boeing Airplane and Transportation (MarketLine Advantage, 6). In 1929, the company’s name was changed again to United Aircraft and Transportation. By that time the company has significantly expanded its business operations and diversified into other business lines (such as airport’s maintenance and mail delivery (MarketLine Advantage, 6). In 1934 the antitrust legislation restricted ownership of mail-carrying airlines, and the company has divided its business into three entities: United Aircraft (manufacturing operations in the East of US), United Air Lines (air transportation) and the Boeing Airplane (manufacturing operations in the West of US) (MarketLine Advantage, 6). During the World War II, the Boeing Airplane Company concentrated on building of bombers. Since 1960’s the company has expanded its business significantly through numerous mergers and acquisitions, creation of new divisions, and expansion of business operations across the globe. Nowadays, the company serves customers in 150 countries across the globe and is recognised to be one of the largest defense contractors in the USA and one of the two major manufacturers of 100+ sear airplanes for commercial purposes (MarketLine Advantage, 4). The Boeing Company serves a broad variety of customers, among which are both government and commercial entities. Some of the major government customers of Boeing Company are: the US Air Force, the US Army, US DoD, US Navy, NASA, US Defense Logistics Agency Aviation, Israel Aircraft Industries, UK Ministry of Defense, European Aviation Safety Agency, US Federal Aviation Administration, etc. (MarketLine Advantage, 4). Practically all major international airline companies use Boeing

Climate Change Paper Term Example | Topics and Well Written Essays - 2250 words

Climate Change - Term Paper Example For example, if major actors in the world’s politics, such as President Bush for instance, are asked about the biggest threat in the world, he may have a list of threats that do not include the dilemma of climate change. The long list of possible threats may include terrorism, security in Iraq, and the extremism of Iran. While all these concerns may be important issues to deal with, the problem of climate change should be given equal, or perhaps more, attention from all countries of the world due to its possible global effects. In that sense, Blair’s argument about the seriousness of the climate change issue is not far-fetched. Rather, his claim that global warming and climate changes should be two of our major concerns in the whole world is reasonable and valid. Actually, Blair’s concerns, which were echoed by the United Nations, about the security threat of climate change are justifiable due to the dangerous effects of global warming on health, economy, and the environment. In recent years, the world’s average temperatures are rising, constituting a serious problem, referred to as ‘global warming.’ This phenomenon occurs as a result of the concentration of carbon dioxide (CO2) on high levels of air. To put it in simple words, the more amounts of Carbon dioxide concentrated in the atmosphere, the higher the world temperatures will grow. Carbon dioxide is one of the main elements in the greenhouse gases that should be reduced in order to keep world temperatures from rising (Houghton). The main source of Carbon dioxide is man’s industrial activities, especially in rich industrialized countries. As made clear by many scientists, â€Å"carbon dioxide (CO2) gas generated by man's burning of fossil fuels and the forests is responsible for about half the greenhouse gas warming† (â€Å"The Effects of Global Warming.†). Thus, the indirect effect of the increasing industrialization trends in the world is the global rise in the temperature levels. This puts much of the responsibility on industrialized nations in trying to reduce their greenhouse gas emissions. In fact, the change in the climate is not too slight to realize; rather, it can be felt by ordinary people, not only by specialized scientists and environmentalists. In Egypt, for instance, most people are aware that summer weather has become much hotter than the case tens of years ago. Also, there are the recurrent waves of hot weather that hit Europe, which has never used to such high temperatures before. Consequently, the change in global climate should be the concern of all kinds of people in all countries, not only scientists and those who are specialized in the geography of the world. Climate change can cause major economic problems for countries, which would have to spend huge amounts of money curing its citizens from the detrimental effect of this environmental phenomenon on health. Human bodies are unable to cope with the severe changes in weather temperatures, when they go too high or too low. Hence, human bodies are accustomed to bear temperatures that revolve around the average. So, the rise in the world temperatures has its serious negative impacts on health, causing a series of diseases and side effects. Generally, world statistics prove that â€Å"extremely hot temperatures increase the number of people who die on a given day†

Service Oriented Architecture And What Advantages Information Technology Essay

Service Oriented Architecture And What Advantages Information Technology Essay The project aims to clearly define SOA, definition SOA, history overview, characteristics, SWOT analysis, and importance of SOA now-a-days, advantages and disadvantages of SOA as compared with other architecture. The project clearly defines the reader the clear overview of SOA which can help them to understand SOA and the comparison with other architecture. In these days SOA is well known and well discussed topic by IT vendors all over the world. IBM, HP, Microsoft, SAP and many other major IT companies use SOA and some of them amending SOA and represent into new tune. SOA is the group of new software bind together to allow IT vendors to produce something else which is latest and flexible. SOA has special and unique characteristics. For effective use of SOA the developers and designer need to understand the characteristics and SOA concepts. (Hurwitz, Judith, et al, 2007) History of SOA It was a big challenge in IT and business to find the service which can make integration between IT and business for achieving business objectives. As it seems that it is very easy but in reality it is very complex. In the past computer applications were developed for specific particular task without integration to other system. In the modern computing the applications are much more distributed. Now a single application shared into several components like emails, DNS services etc. it is more practical to use components based computing rather than using one application for one task. (Service-Oriented Architecture, 2010) In the past if the account holder needs the information about the account then the customer service representative has to go to one terminal and enter the account number. If the customer needs the saving account information then the representative has to enter the account number in the different terminal. The problem was that each account type has different interfaces. Now-a-days with the successful implementation of SOA and distributed systems banks are now interconnected which improved customer services and customer satisfaction. It also reduced the cost and time.(Rosen,Boris Smith, 2008) Before explaining SOA the software architecture needs to be explained. Software architecture is a new field in the software engineering. Software architecture highlighted the components of the system and how they interact with each other. The interaction between these components is called connectors. (Stevens, 2002) The definition of Software architecture is as followed The software architecture of a program or computing system is the structure or structures of the system, which comprise software components, the externally visible properties of those components, and the relationships among them. (Bass, Clements, and Kazman 1997) Figure 2.1 Components and connectors of system software architecture What is SOA? On the basis of software engineering SOA is an IT architecture which is based on the delivery of reusability of well-defined business. The IT components are under pinned in such a way that the consumer (customer) and provider (business) are loosely coupled. SOA give the independence to enable components to be implemented in different platforms and computer languages. SOA give the great flexibility to re-assemble the existing IT components to build a new solution. There is no restriction in SOA that where there components resides and how things will create. The big misconception about SOA is that most people think that SOA is a technology. However, SOA is not a technology it is the approach to software design that assemble systems from a reusable components and services may originated from different resources and different technology environment. The services provided by SOA can be distributed across heterogeneous platforms which maximize the business and IT agility. (Introduction-to- Service-Oriented-Architecture-SOA, 2010) There are many definitions of SOA. The definition of SOA which can be more likely to understand is as followed: A service oriented architecture is a framework for integrating business processes and supporting IT as secure, standardized components service that can be reused and combined to address changing priorities (Bieberstein, Norbert, et al, 2010) SOA is flexible architecture design. SOA is not only simple architecture it builds architecture on the basis of existing architecture and build more advance software architecture. (Oasis, 2006) According to Jamil SOA is a design pattern which is composed of loosely coupled, discoverable, reusable, inter-operable platform agnostic services in which each of these services follow a well-defined standard. Each of these services can be bound or unbound at any time and as needed. (Jamil, 2010) In this definition it did not indicate any service that what service is being provided in this architecture. It did not describe about software. On the basis of SOA the hardware architecture can be designed effectively. Basically SOA architecture plays the role of bridge between embedded systems and enterprise software. Many companies are making integrated systems now-a-days and SOA is playing a very important role in the integrated systems for integration. SOA makes changes easier SOA makes changes easier in the business and IT environment. IT Systems are the collection of software, hardware and networks. These IT components (software, hardware and networks) are integrated with each other. For making change between them is very difficult. It is very easy to reuse and assemble the components with the help of SOA. For example if a business provides some services to customer like checking credits, checking shipping status and inventory. With the help of SOA we can assemble components in any way as required by the business. When a business needs to be changed then instead of doing work from the beginning we have to reuse and re-arrange the components and services to make something new. SOA help us to save the time and money. We can add new components or someone elses components to make the IT to build something new. SOA helps to grow the business. It gave the flexibility to make change in our business easily which helps business to innovate new. (Rosen Michael, Lu blinsky Boris Smith Kevin T., 2008). The base of SOA is based on loosely coupled services in which software components can easily communicate with each other. These components do not have to know their technical details. (Service-Oriented Architecture, 2010) SOA Model Registry Publish Find Service Provider Service Customer Service Consumer Service consumer executes the service by sending it a request formatted according to the contract. Service Provider Service provider publishes its contract in the registry for access by service consumers. Service Registry Service registry is a network-based directory that contains available services. It is an entity that accepts and stores contracts from service providers and provides those contracts to interested service consumers. Advantages and Disadvantages of Service-Oriented Architecture Advantages of Service-Oriented Architecture (SOA) This section shows the advantages of SOA in the following aspects. SOA benefits to distributed computing SOA short term benefits SOA long term benefits SOA benefits from the business prospective SOA benefits t to distributed computing Location independence SOA is loosely coupled architecture and location is important factor for loosely coupled architecture. Loosely coupled architecture like SOA provides many requests of the same service from the different location. SOA provides location independence. In SOA architecture services does not need a particular network or specific system.(Bieberstein, 2006) Completely loosely coupled SOA has loosely coupled approach and the quality of this service is that if you want to change the service in one location then it does not need to change linked services. Dynamic search and  connectivity to other services SOA short term benefits SOA has many short term benefits like Enhancing reliability Reducing hardware acquisition costs Leverages existing development skills Providing data bridge between business and IT (Introduction-to-Service-Oriented-Architecture-SOA, 2010) SOA long term benefits SOA provides the following long term benefits Ability to build composite  compatible applications Reducing management costs Real-time decision making applications (Introduction-to-Service-Oriented-Architecture-SOA, 2010) SOA benefits from the business prospective Change more quickly according to the customer Low cost of maintenance technology Leverages existing investments in technology Reduces expensive custom development cost (Introduction-to-Service-Oriented-Architecture-SOA, 2010) The main advantage of SOA is that it fits in business and IT gaps. In the recent world there are many forces contributing in business environement like competition, new products and other endless factors. In the past, IT groups were struggling for fill out this IT and business gap. SOA filled this gap by building an integration between IT and business. One thing which we have to keep in our minds while implementing SOA in the organizations that SOA is not a complete success it is based on how SOA is being designed?. For example, if anyone wants to replace the AVsystem they can replace it with better DVD player. So, they can buy DVD player and replace AV system quickly. Similarly if an organization wants to replace old CRM with new CRM they can easily buy one and integrate with existing system with the help of SOA. But the success of SOA is that how it is designed?. (Barry, 2003) SOA services are used by multiple clients. So, SOA has their own security systemsalso. Multiple level security increased the security of the system. SOA architecture integrate application with each other which solved the problem of software incompatibility and as a result it has low integration cost. SOA facilitate the organization to adapt change quikly. With the help of SOA organizations can adapt change according to market situation. (Barry, 2003) Disadvantages of Service-Oriented Architecture Although there are many advantages of SOA but there are some disadvantages also. SOA is based on loosely coupled architecture thats why SOA has no synchronization element. In SOA process there are some illogical steps followed which are not the part of the SOA model. SOA is not recommended for the following applications. SOA is not for the systems which are stand alone or non-distributed e.g. word processor does not has request and respond based calls. SOA is not suitable for applications which are short term and those applications which have no attention of reusability in the future. Applications which have lots of data of geographical manipulation data are also not suitable with SOA. (Disadvantages of SOA , 2010) Comparison with other architectures SOA vs. Components based architecture If we compare SOA and component based architecture then there is no clear line between them. The main difference between them is connection between and the possibilities offer single service for third party. Conclusion In the conclusion SOA is not the aver night architecture that happens suddenly or overnight. To implement SOA it needs patience consistency and right way of implementation. SOA has many advantages and disadvantages. SOA by itself does not have major problem but the way of implementation is the key point of success. SOA has many challenges but the challenges are more likely relevant to business rather than IT. It is also considered that SOA is not the solution for all the software development problems. SOA has too many problems like the required service according to circumstances, acceptable performance and security. Although there are many advantages and disadvantages of implementing SOA but the key success of implementing of SOA is the way of implementation SOA. How SOA is being implemented in the organization? References Bass, L., Clements, P., and Kazman, R. Software Architecture in Practice. Addison- Wesley, 1997. Bieberstein, Norbert, et al. Chapter 1 Introducing SOA.Executing SOA: A Practical Guide for the Service-Oriented Architect.  IBM Press,  Ã‚ © 2008.  Books24x7. Web.  Nov. 16, 2010.http://common.books24x7.com.librouter.hud.ac.uk/book/id_27520/book.asp Barry, D. K. (2003). Web services and service-oriented architecture: the savvy managers guide. San Francisco,CA: Morgan Kaufmann Publisher. Bieberstein Norbert, Marc Fiammante, Keith Jones, Rawn Shah . (2006). Service-oriented architecture compass: business value, planning. US: Pearson Plc. Ejaz Jamil, What really is SOA. A comparison with Cloud Computing, Web 2.0, SaaS, WOA, Web Services, PaaS and others. Web.Nov.17,2010.http://soalib.com/doc/whitepaper/SoalibWhitePaper_SOAJargon.pdf Hurwitz, Judith, et al. Service Oriented Architecture for Dummies.  Service Oriented Architecture For Dummies.  John Wiley Sons,  Ã‚ © 2007.  Books24x7. Web.  Nov. 16, 2010. Juneja, Girish, et al. Chapter 1 Introduction.  Service Oriented Architecture Demystified.  Intel Press,  Ã‚ © 2007.Books24x7. Web.  Nov. 16, 2010. Marks, Eric A., and  Michael Bell. Chapter 1 Introduction to the SOA Business Model.  Service-Oriented Architecture: A Planning and Implementation Guide for Business and Technology.  John Wiley Sons,  Ã‚ © 2006.  Books24x7. Web.Nov. 16, 2010. Rosen Michael, Lublinsky Boris Smith Kevin T. (2008). Applied SOA : Service-Oriented Architecture and Design Strategies. John Wiley Sons. Stevens, Michael. Service-Oriented Architecture Introduction.web. Nov.16,2010.http://www.developer.com/services/article.php/1010451 Schmutz, Guido,  Daniel Liebhart, and  Peter Welkenbach. Chapter 1 Basic Principles.  Service Oriented Architecture: An Integration Blueprint: A Real-world SOA Strategy for the Integration of Heterogeneous Enterprise Systems.  Packt Publishing,  Ã‚ © 2010.  Books24x7. Web.  Nov. 16, 2010.http://common.books24x7.com.librouter.hud.ac.uk/book/id_35815/book.asp Service-Oriented Architecture. (2010). Retrieved 11 22, 2010, from What is Service-Oriented Architecture?: http://www.bestpricecomputers.co.uk/glossary/service-oriented-architecture.htm Top of Form Bottom of Form Top of Form Bottom of Form

The Taming of the Shrew Essay -- Shakespeare Plays Papers

The Taming of the Shrew In taking on the task of directing The Taming of the Shrew, Gregory Doran followed in a long line of directors that were faced with the challenge of how to mount one of Shakespeare's problem plays. The main issue of the play is how to deal with the brutal treatment of Katharine by Petruchio. It is male domination of the female through violence and starvation that eventual breaks Kate's will and tames her. The interpretive gesture reserved to the director is to decide how completely Kate becomes obedient to Petruchio and if she actually falls in love with him. There is also the general attempt to soften the harshness of the text through performance, using irony to soften the painful action taking place on the stage. Past productions have found varying ways of dealing with these issues to make the play digestible to modern audiences. Great liberty is usually taken with the text in order to justify the misogynistic overtones of the play. One major way of dealing with the issues of the play is done through the inclusion or exclusion of the induction. The play opens with the drunkard Sly being tricked to believe he is royalty, and the entirety of The Taming of the Shrew is a performance for his benefit. Its inclusion thus serves as a framing device that can distance the audience from the difficult parts of the show, as the audience is made conscious of the fact that they are only watching a performance. To exclude the induction makes the action on stage more real, it is not possible to disregard the story as mere theatrics. An example of the application of the induction is the John Barton production in 1960, with Peter O'Toole as Petruchio. The cut scenes featuring commentary from Sly from The Tamin g of a ... ...o. It is clear that Doran didn't see the production about a battle of the sexes, but instead as a love story between two people who have difficulty relating to all others around them. Both Kate and Petruchio are reconceived as insecure people who are only very strong willed in order to hide their fears of their inadequacies. Doran found motivation for the actions of the play that were based on text to create a unique view of the characters. Holderness, Graham. Shakespeare in Performance: The Taming of the Shrew. Manchester University Press. Manchester. 1989. Holland, Peter. English Shakespeare: Shakespeare on the English stage in the 1990s. Cambridge University Press. United Kingdom. 1997. Spencer, Charles. Funny, touching - and shrewd. London Telegraph. April 2003. Thompson, Ann. The Taming of the Shrew. Cambridge University Press. United Kingdom. 2003.

Baseline Magazine Website Review

Baseline (www. baseline. mag) is an online resource and special interest online magazine for people who are working in IT departments of companies, IT companies, and even mere enthusiasts in the field. As the site describes itself, Baseline is a resource site for information technology, planning, implementation and IT solutions for business.The home page utilizes a three-column, uncluttered layout with a cool-to-the-eyes orange and maroon motif against a white background. Article titles and links, meanwhile, are encoded in blue.The same color scheme is used in all subdirectories although the latter pages are less eye-catching than the main page, usually a simple one-column presentation of text and graphics. The whole home page looks like the usual e-zine but because Baseline is an information-driven site, it does not feature photos and animated graphics to capture the reader’s attention. It focuses on content so that it relies on catchy text presentation in various font sizes to show the readers the level of relevance of a featured article as determined by its editors. I browsed around the site to sample their articles.I read its main headline, â€Å"USEC puts energy into virtualization†, a story about the move of uranium supplier USEC towards server virtualization to optimize its service and offer lower cost. Like most online magazines, Baseline’s articles feature options for the reader to rate, share and download a printable or PDF version of the article. Meanwhile, a Related Content box to the right encouraged me to click on and read more articles. A feature worth mentioning are the eight subject tabs located just below the site banner. Baseline divides the contents of its site into eight categories (Compliance, Intelligence, IT Management, etc.) and I think this is helpful to anyone who would like to read articles on specific categories only. A click on the desired tab generates a list of articles on the category, both new and archived. Another aspect I found interesting was a streaming line of text on top of the page announcing digital events. Furthermore, just when I am ready to conclude that Baseline online magazine is pure boring text, I happen upon news presented in video (a news item about the need for smooth upgrade to Windows Vista, among others) and another one in slideshow format (an article enumerating the 8 ways by which technology has changed sports).Baseline has a printed version. A portion of the homepage shows a cover of its latest issue and the articles inside, which could also be read online. However, even if access to the site is free to readers, the online version obviously earns more for the company judging by the prominent advertisements of well-known IT companies. Some articles are even sponsored or have been produced by an advertiser and not Baseline itself.There are ad boxes, links, texts, and graphics enticing the reader to check out IT-related products or services. There are even Google ad boxes. The site’s major sponsor, IBM, is prominently displayed in an ad box on the home page. Overall, Baseline is a veritable resource for the IT specialist or enthusiast who would like to be updated on the latest on information technology although the site owners specifically aim to reach IT businesses and IT department employees as its articles always tend to relate both IT and business.IT businesses and departments of companies would benefit from reading the articles, keep them updated with the latest trends on the market, and even help them look for their hardware and software system needs for their respective business through the site’s well-known advertisers. The site contains specialized information and has a limited target audience, but Baseline is a complete and very good site for this particular audience group. Reference: Baseline. Electronic magazine. Accessed on May 6, 2009. www. baselinemag. com.

Fire Prevention and the Federal Government Essay

Many government agencies make fire prevention as part of their mission. America has the highest fire death rate is the highest in the world. Fires kill 3,700 and injure over 20,000 people each year. Property loss is about $11 billion per year. The United States Fire Administration (USFA) has helped to reduce fire deaths by half. They have contributed to fire prevention and suppression more than any other government agency. In 1974, Congress established the United States Fire Administration . Their mission is to provide national leadership to local fire and emergency services. It is a division of the Federal Emergency Management Agency (FEMA). FEMA became part of the Department of Homeland Security on March 1, 2003. Their mission is to â€Å"reduce the loss of life and property and protect the Nation from all hazards, including natural disasters, acts of terrorism, and other man-made disasters† (â€Å"About USFA†, n. d. ). The Department of Homeland Security was formed after the September 11, 2001 terrorist attacks. Their primary mission is to protect the country from terrorism. Since the USFA was created for the sole purpose of the prevention, preparedness, and response to fires and other emergencies, it has contributed the most to the cause. â€Å"America’s fire death rate is one of the highest per capita in the industrialized world† (â€Å"About USFA†, n. d. ). Thus, it is still an improvement since more than twenty years ago. In 1971, 12,000 people and 250 firefighters died as a result of fires. USFA continues to make our communities and society safer today. Reference U. S. Fire Administration. About the U. S. Fire Administration. Retrieved August 3, 2008 from http://www. usfa. dhs. gov.

Maths Coursework Essays

Maths Coursework Essays Maths Coursework Essay Maths Coursework Essay In my investigation I plan to find out whether my theory that year 10 pupils are better at estimating the length of a stick than year 7 pupils. Plan- In my investigation I plan to use secondary data gathered from both year 7 and year 10 pupils, which I will then do a random sample of which will be used to find the mean, median, mode, range as well as standard deviation which I will then put into groups and frequency tables to compare and from this I will hopefully be able to come to a conclusion. Aim- I am hoping to find if the statement that year 10 pupils are better at estimating length than year 7 pupils is true and find different ways of proving this. I am hoping to find a mean for the both groups to compare where I will hope to find that the year 10 mean is closer to the actual value (1.36m) than year 7 pupils and this I hope will help me come to a fair conclusion. I am also hoping to find the standard deviation for both groups and hope to find that year 10 pupils will have a smaller standard deviation than the year 7 pupils because I believe it is more reliable because it shows less range which means all of the pupils have answered fairly similarly because a wide range means people where miles away with their guessing. Sampling- I will number each piece of raw data and then I will use the random search on my calculator. I will have to use a sampling because there is too much data to work with and it will be random to make it fair. Because I will use a random sample I will need to find a certain number of the population that I will randomly choose. So I need to find what proportion of year 7 and 10 pupils I will need. I have chosen to use 20%, which is 36 pupils so it is in the same proportion as the population, i have chosen 20% because i believe this number represents a fair selection of the population. To do this I will need to figure out how many boys and girls I will need to randomly select, first I will use the data of year 7 pupils, Year 7 Boys Girls Because I am working with this certain type of data which is given to me in people it means I cannot use decimal points so I will need to round the figures up and down. Boys Girls To select my 15 boys and 21 girls from year 7 I will use the random button on my calculator. To do this I have numbered all of my data values so they maybe selected fairly. I have done this because it is random and not biased towards anyone so it is completely random. Example- I used the random button on my calculator and the number 0.145 acme up so I looked through my data and looked for which record was given this number and then I recorded its gender which was female and then its estimate which was 1.50 then I repeated this process again using my calculator and the number 0.234 came up so I looked through my records and saw it was outside my range so I ignored it and when I came to the end and had found the number of females I wanted but not males I would simply continue until another male record came up ignoring the rest of the females. Year 7 Sample- Year 10 In year 10 there are 93 girls and 87 boys, because they are different values I will have to do a calculation to figure out the proportion of the population who will be included in my 20% (36 people). I will use the same method to do the year 10 pupils as I did with the year 7 pupils to make the investigation fair. Year 10 Girls Boys Again because I am working with data that in this case cannot be used with decimal places, so I will need to round them up and down. Boys Girls Year 10 Sample Because I have now randomly chosen a fair amount of both year 7 and year 10 pupils, I have now decided to find the mean, median, mode, range and standard deviation for the groups of year 7 boys and girls and year 10 boys and girls. Analysis of results To find out the standard deviation and the mean ( ) I will use my calculator, to find out the mode and range I can simply read off the answers and to find the median I will write down the values the find the answer. Year 7 Boys Girls Mean ( ) Median- Mode- Range- Standard Deviation (2d.p)- Year 10 Boys Girls Mean ( )- Median- Mode- Range- Standard Deviation (2d.p)- Because I am trying to find that year 10 pupils are better at estimating length than year 7 pupils I will need to find an overall mean, median, mode, range and standard deviation for year 7 and Year 10 pupils. Year 7 Mean ( )- Median- Mode- Range- Standard Deviation (2d.p)- Year 10 Mean ( )- Median- Mode- Range- Standard Deviation (2d.p)- Now I have decided to put my results in to graphs and frequency tables because I believe these will help me come to a fair conclusion. I have chosen to use standard deviation because it shows the average distance each data value is from the mean, which i believe will help me with my investigation and the mean will help me see what the average data value from the selected data is and i believe these will help me come to a fair conclusion. Conclusion- From my results I have proved my hypothesis correct because the mean of the year 10 pupils estimations is closer to the correct length of the stick, which is 1.36m. With the mean of the year 7 estimations being 1.43m the overall year 10 mean is 1.38m meaning that the year 10 pupils are better at estimating length than year 7 pupils. But the standard deviation of year 10 pupils is 0.22 with the standard deviation of the year 7 pupils being 0.13 this shows that the year 7 results are more reliable because the results are closer together showing a similarity in the answers and also showing that pupils in year 10 have estimated a wider range which is also shown in the range because the year 10 pupils have a much wider range meaning it is less reliable. This tells me that not all year 10 pupils are better at estimating length than year 7 pupils. So overall I believe the results of my investigation where inconclusive because although the mean of the year 10 pupils was closer to the actual length which does in a way prove that year 10 pupils are better at estimating length than year 7 pupils but the standard deviation shows how the year 10 pupils results are also less reliable than year 7 pupils results. So I believe that both of my results can cancel each other out leaving me no choice but to say the results of my investigation where inconclusive. Evaluation- I believe that the random sampling method that I used in my investigation worked very well as well as the way I chose the percentage of the population, which I planned to use. I believe there was nothing wrong with this method and if I was made to re-do this investigation I would have used the same method. The main point that forced me to come to the conclusion that my investigation turned out inconclusive was the results themselves because I am trying to prove that a certain group of people (year 10) is better at estimating length than another group of people (year 7) and with these results I found that some year 7 pupils where actually better at estimating length than some year 10 pupils even though the majority in year 10 where better at estimating length it meant that I could not say that all year 10 pupils where better at estimating length and shows how difficult it was to come to the conclusion with the results of the standard deviation to consider as well. Another thing I believe is that the mean is hard to come to a conclusion with because out of the whole of year 10 the mean was 1.38m which not 1 person in the year had as their estimate. If I done this investigation again I would choose a lower percentage of people to choose from like 10% which would have been 18 pupils and any pupils whos estimates where way out I would discard them or make sure they do not guess stupidly and this would make it easier to come to a conclusion.