A typical null hypothesis with a goodness-of-fit test as presented in the text might be
A) the hypothesis that the means increase evenly across categories.
B) the hypothesis that the representation in each category is equal.
C) the hypothesis that subjects are normally distributed.
D) the hypothesis that the expected values are uniformly large.

Question

Quizplus · Accepted Answer

The null hypothesis in a goodness-of-fit test is typically that the observed frequencies in different categories do not differ significantly from the expected frequencies based on a specified distribution or model. In other words, the null hypothesis is that the representation in each category is equal. Therefore, choice B is the best answer. The other choices are not relevant to the null hypothesis of a goodness-of-fit test.

A Typical Null Hypothesis with a Goodness-Of-Fit Test as Presented