For a sample of size 11,the critical values of chi-square for a 90 percent confidence interval for the population variance are
A)6.262,27.49
B)6.908,28.85
C)3.940,18.31
D)3.247,20.48

Question

Quizplus · Accepted Answer

The critical values of chi-square for a 90 percent confidence interval for the population variance with a sample size of 11 are 3.940 and 18.31, which are given in option C. The other options have different critical values for different confidence levels or sample sizes. Hence, option C is the best choice.

For a Sample of Size 11,the Critical Values of Chi-Square