In practice, the most frequently encountered hypothesis test about a population variance is a _____.
A) one-tailed test, with rejection region in lower tail
B) one-tailed test, with rejection region in upper tail
C) two-tailed test, with equal-size rejection regions
D) two-tailed test, with unequal-size rejection regions

Question

Quizplus · Accepted Answer

In practice, tests about population variance often involve checking if the variance is greater than a specified value, leading to a one-tailed test with the rejection region in the upper tail.

In Practice, the Most Frequently Encountered Hypothesis Test About a Population