The test of means for two related populations match the observations (matched pairs)in order to reduce the ________________ attributable to the difference between individual observations and other factors.
A)means
B)test statistic
C)degrees of freedom
D)variation

Question

Quizplus · Accepted Answer

Matching observation pairs reduces the variation attributable to individual differences between the observations. This leads to a more accurate comparison of the means between the two related populations.

The Test of Means for Two Related Populations Match the Observations