Gallup asked a nationally representative sample of adults about their body image. Among the men in the sample, 103 felt that they were under their ideal weight, 82 felt that they were at their ideal weight, and 304 felt that they were over their ideal weight. Among the women in the sample, 35 felt that they were under their ideal weight, 80 felt that they were at their ideal weight, and 345 felt that they were over their ideal weight. To see if body image is significantly associated with gender, which of the following statistical inference procedure should we use?

Question

Quizplus · Accepted Answer

A chi-square test for two-way table is used to determine if there is a significant association between two categorical variables. In this case, we have two categorical variables (gender and body image) and their counts have been tabulated in a two-way table. Therefore, a chi-square test for two-way table is the best choice to determine if there is a significant association between body image and gender.

Gallup Asked a Nationally Representative Sample of Adults About Their