Some people are "cat people" and some are "dog people," but which are there more of in Sam's research methods class? What statistical test could help Sam evaluate this question and the data she would likely collect?

Question

Quizplus · Accepted Answer

The chi-square test for goodness-of-fit would be the best choice for evaluating how many people in Sam's research methods class are "cat people" versus "dog people." This test compares the observed frequency of each category (i.e. number of "cat people" and number of "dog people") to the expected frequency, which is based on the assumption that there is no difference in the proportion of "cat people" versus "dog people" in the population. If the observed frequencies differ significantly from the expected frequencies, it suggests that there may be a true difference in the proportions of "cat people" versus "dog people" in the population.

Some People Are "Cat People" and Some Are "Dog People