In general, power increases as
A) the difference between the means decreases.
B) the sample size increases.
C) the variance increases.
D) None of the above is correct.

Question

Quizplus · Accepted Answer

Power increases as the sample size increases because larger samples have less sampling error and are more representative of the population. Option A is incorrect because power actually increases as the difference between the means becomes larger. Option C is also incorrect because larger variances make it more difficult to detect a significant difference and thus decrease power.

In General, Power Increases as