P-values for the sign test for matched pairs are calculated using which distribution? (Note: n is the number of trials where the difference is not zero. )
A)t(n)
B)N(0,1)
C)B(n,1/2)
D)None of the above

Question

Quizplus · Accepted Answer

The sign test for matched pairs compares the number of positive differences and negative differences. These differences can be seen as successes and failures in a Bernoulli trial, where the probability of success is 1/2. Therefore, the p-values for the sign test are calculated using the binomial distribution with n trials and probability of success equal to 1/2. Therefore, the correct choice is C (B(n,1/2)). The other options are not applicable for this scenario.

P-Values for the Sign Test for Matched Pairs Are Calculated