If a sample of 12 observations is taken to perform a matched or paired sign test and there are 2 ties in the data,then the p-value is based on a binomial distribution with:
A)n = 12,and P = 0.5
B)n = 10,and P = 0.5
C)n = 10,and P = 0.4
D)n = 12,and P = 0.4

Question

Quizplus · Accepted Answer

In a matched or paired sign test, when there are ties in the data, those observations are typically removed from the analysis. Therefore, with 2 ties in a sample of 12, the analysis is based on the remaining 10 observations. The p-value is calculated assuming each of the non-tied pairs has an equal chance of being positive or negative, hence P = 0.5.

If a Sample of 12 Observations Is Taken to Perform