Which statement is true when using the sign test and a large sample?
A) Chi-square value is applied to arrive at the degrees of freedom.
B) A normal distribution should be used to approximate a binomial distribution.
C) Wilcoxon Z is the test statistic.
D) The F-distribution is applied.

Question

Quizplus · Accepted Answer

The sign test is a non-parametric test that can be used when we have two related samples, and our data cannot be assumed to be normally distributed. When the sample size is large, we can use the normal distribution to approximate the binomial distribution, which is the null distribution for the sign test. Therefore, choice B is the correct answer.

Which Statement Is True When Using the Sign Test and a Large