What is the main advantage of using a permutation test over a two-sample t test?
A)The permutation test can be conducted more quickly than a two-sample t test and does not require the use of specialized tables.
B)The permutation test is valid for much smaller sample sizes.
C)The permutation test gives exact P-values.The two-sample t test gives only approximate P-values.
D)The permutation test gives accurate P-values even when the sampling distribution of the difference in means is not close to Normal.

Question

Quizplus · Accepted Answer

Permutation test does not require any assumption regarding the distribution of the population, whereas a two-sample t-test requires the assumption that the population is normally distributed. Therefore, the permutation test is more reliable than the t-test when the population distribution is not known or not normal. The permutation test provides accurate P-values regardless of the distribution of the data.

What Is the Main Advantage of Using a Permutation Test