​Find the critical value

Statistics
Tutor: None Selected Time limit: 1 Day

Find the critical value 

Χ2R corresponding to a sample size of 19 and a confidence level of 99 percent.
Jul 10th, 2015

Thank you for the opportunity to help you with your question! I shall do my best to help you out!

I’m assuming this is for statistics class of some sort. This looks like a right-tail critical value for a chi-squared distribution.

There should be a table that was given to you in class, or in your textbook. Look under 0.005 (confidence level of 99%  is 0.005 because: 100- 99 = 1% = 0.01. It usually is a/2, therefore, 0.01/2 = 0.005).

And 18 (18 comes from the sample size of 19, however, the degrees of freedom is always: degrees of freedom (df) – 1) in this case it will be 19 -1.

If we look under 0.005 and 18, we should find a value of 37.156. This is assuming that ‘a’ = 0.005, if ‘a’ equals 0.01, we can just relocate the number on the chart. 

I hope this answers your question. 


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Jul 10th, 2015

It is for statistics and thank you for explaining.

Jul 10th, 2015

You're very welcome! I'm happy I could help. 

Jul 10th, 2015

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