Calculate the upper tail of a chi-square distribution on a Casio 9750 graphing calculator (
http://amzn.to/1AVxr78).
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Approximate script:
To find the tail area for a chi-square distribution, first navigate to the Stat section using Menu and then hitting 2. Then hit F5 for Distributions, F3 for chi-square distribution, and then F2 for chi-square cumulative distribution. If needed, switch to enter the data as variables.
In the first problem, I'm going to find the upper tail area for a chi-square distribution with 5 degrees of freedom for a cutoff of 12. So I'll punch in 12 for the lower distribution cutoff, and then I'll punch in a really big number for the upper cutoff. A value like 10000 will do just fine for almost any situation. Lastly, I punch in my degrees of freedom of 5 and hit execute. I get an answer of about 0.0348.
I'll do one more problem: the upper tail when the degrees of freedom is 1 and the cutoff is 2.5. Here I get an upper tail area of 0.1138.
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Casio fx-9750GII - Calculating Chi Square Upper Tail Area | |
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| Education | Upload TimePublished on 23 May 2015 |
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