Tilley Posted February 23, 2011 Report Share Posted February 23, 2011 Hey!I'm having some trouble organizing my Math Studies Project, two big issues, firstly i come up with weird answers when i do my Chi-Squared test, are their only certain types of data you can use? secondly, if anyone knows any good links to any high scoring examples or a great outline to work off of, please link, kind of drowning here.Thanks so so so much! Reply Link to post Share on other sites More sharing options...
Vvi Posted February 23, 2011 Report Share Posted February 23, 2011 A very basic example is provided here http://ibhelp.blogspot.com/2008/05/ib-math-studies-ia-project-example.html .Chi-squared tests do only work with certain data. Namely "When performing a chi-square test, your data must satisfy important assumptions. Although these assumptions may be stated differently in different textbooks, they generally assert that:1) The sample must be randomly selected from the population.2) The sample size, n, must be large enough so that the expected count in each cell is greater than or equal to 5.There are also assumptions about the independence of the test which are important. Read here: http://davidmlane.com/hyperstat/B155670.html 1 Reply Link to post Share on other sites More sharing options...
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