A sample of n=40n=40 data values randomly collected from a normally distributed population has variance s2=11.7s2=11.7. We wish to test the null hypothesis H0:σ2=7.1H0:σ2=7.1 against the alternative hypothesis H1:σ2≠7.1H1:σ2≠7.1 at a significance of α=0.01α=0.01. What is the value of the test statistic? Write your answer rounded to 3 decimal places. What are the critical values? Write your answers rounded to 3 decimal places. Lower CV:  Upper CV:

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A sample of n=40n=40 data values randomly collected from a normally distributed population has variance s2=11.7s2=11.7. We wish to test the null hypothesis H0:σ2=7.1H0:σ2=7.1 against the alternative hypothesis H1:σ2≠7.1H1:σ2≠7.1 at a significance of α=0.01α=0.01.

What is the value of the test statistic? Write your answer rounded to 3 decimal places.

What are the critical values? Write your answers rounded to 3 decimal places.

Lower CV: 

Upper CV:

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