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Determine the critical values for the confidence interval for the population standard deviation from the given...

Determine the critical values for the confidence interval for the population standard deviation from the given values. Round your answers to three decimal places.

n=15 and α=0.05.

Math   Statistics-And-Probability   
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Answer #1

We have given,              
              
Sample size =n=   15      
Degree of freedom =n-1=   14  
Level of significance=0.05      
              
   by using chi square critical value table or Excel =CHIINV(1-(0.05/2),14)
by using chi square critical value table or Excel =CHIINV((0.05/2),14)

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