For which of the following would it be most appropriate to use an ANOVA to analy

Question

For which of the following would it be most appropriate to use an ANOVA to analyze the data? A. A researcher is interested in determining the most effective format for advertising. He randomly assigns 60 people to one of three groups: (1) television commercial, (2) radio commercial, or (3) magazine advertisement. Group members review the commercial and then report whether or not they would buy the product. B. In order to determine the effectiveness of different diet plans, 90 people are randomly assigned to one of three groups: (1) low calorie diet, (2) low-fat diet, or (3) low-carb diet. At the end of 60 days, the number of pounds lost was recorded for each of the participants. C. Both A and B. D. Neither A nor B.

Explanation / Answer

Answer is Option B) because we have categorical explanatory variable (type of diet), with more than two categories, and a quantitative response variable (number of pounds lost).

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