When testing a hypothesis about the mean of a population of paired differences in which two different observations are taken on the same units,the correct test statistic to use is _________.
A)z
B)t
C)F
D)Chi-square
E)None of these

Question

Quizplus · Accepted Answer

The t-test is used for hypothesis testing about the mean of paired differences, especially when the sample size is small and the population standard deviation is unknown.

When Testing a Hypothesis About the Mean of a Population