Use the following to answer questions :
A random sample of 20 elements selected from a population produced a variance equal to 9.606.The null hypothesis is that the population variance is equal to 10.05 and the alternative hypothesis is that the population variance is not equal to 10.05.Assume that the population is normally distributed.The significance level is 5%.
-The critical values of chi-square are:
A) 10.117 and 30.144
B) 8.231 and 31.526
C) 7.633 and 36.191
D) 8.907 and 32.852
Correct Answer:
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