In: Statistics and Probability
Find the critical values for a 90% confidence interval using the chi-square distribution with 6 degrees of freedom. Round the answers to three decimal places.
The Critical values are _____ and ______.
We have given,          
   
          
   
Sample size =n=   7      
Degree of freedom =n-1=6  
Level of significance=1-0.90=0.1  
   
          
   
 by using chi square critical value table or Excel
=CHIINV(1-(0.1/2),6)
 by using chi square critical value table or Excel
=CHIINV((0.1/2),6)
| The Critical values are 1.635 and 12.592 |