Interactive Statistics

3.23 An experiment was conducted to find out what kind of diet was best for a weight-loss pro- gram. Three levels of fiber content were chosen: Low, Medium, and High; while two levels of carbohydrate content were chosen: Low and Medium. Twenty people were randomly assigned to each treatment combination of fiber and carbohydrate content. Their weights were measured two weeks after administering the diets. (a) The response variable is The explanatory variables are (list all of them)