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Determine the critical values for the confidence interval for the population variance from the given values....

Determine the critical values for the confidence interval for the population variance from the given values. Round your answers to three decimal places. n=13 and c=0.95.

Math   Statistics-And-Probability   
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Answer #1

We have given,              
              
Sample size =n=   13      
Degree of freedom =n-1=   12  
Level of significance=1-0.95=0.05      
              
by using chi square critical value table or Excel =CHIINV(1-(0.05/2),12)
by using chi square critical value table or Excel =CHIINV((0.05/2),12)

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