When calculating a z test, one compares data from the sample to a:
A) sample distribution.
B) population distribution.
C) distribution determined by the null hypothesis.
D) distribution determined by the research hypothesis.

Question

Quizplus · Accepted Answer

In a z test, one compares the sample data to a distribution determined by the null hypothesis. This is because the null hypothesis is the default assumption that there is no significant difference between the sample and the population, and the distribution determined by the null hypothesis represents the expected distribution if the null hypothesis is true.

When Calculating a Z Test, One Compares Data from the Sample