Which of the following is used to conduct a hypothesis test about the population variance?
A) Sample mean
B) Population mean
C) Sample proportion
D) Sample variance

Question

Quizplus · Accepted Answer

To conduct a hypothesis test about the population variance, we need to use the sample variance as the test statistic. This is because the sample variance measures how much the data in the sample vary from the mean, which is a key component in testing hypotheses about population variances. The other options (A, B, and C) are used for hypothesis testing about population means or proportions, not variances.

Which of the Following Is Used to Conduct a Hypothesis