Which one of the following is not an assumption underlying a test statistic?
A)the samples are independent
B)the characteristic of interest in each population have normal distribution
C)the two populations are of equal size
D)the populations have equal variances

Question

Quizplus · Accepted Answer

The assumption of equal population sizes is not necessary for a test statistic. However, in some cases, it may simplify computations if the samples are of equal size. The other assumptions listed (independence of samples, normal distribution of characteristics in populations, and equal variances) are common assumptions underlying many test statistics.

Which One of the Following Is Not an Assumption Underlying