Under what condition might we use proportions rather than means as the test statistic?
A) When sample size is very small
B) When sample size is very large
C) When the variable of interest is only interval-ratio in level of measurement
D) When the variable of interest is only nominal in level of measurement

Question

Quizplus · Accepted Answer

Proportions are used as the test statistic when the variable of interest is only nominal in level of measurement, and not interval-ratio. Means are used when the variable is interval-ratio, whether the sample size is small or large.

Under What Condition Might We Use Proportions Rather Than Means