If a Hypothesis Test for a Single Population Variance Is

Multiple Choice

If a hypothesis test for a single population variance is to be conducted using a significance level of to 0.10,a sample size of n = 16,and the test is a one-tailed upper-tail test,the critical value is:

A) z = 1.28.
B) t = 1.345.
C) x² = 22.3071.
D) x² = 24.9958.