Question

In a study reported in the American foumal of Clinical Nutrition, young men who drank fat-free milk after exercising gained 40% more muscle mass than those who drank a soy beverage after exercising. The study was conducted over a 12 -week period. What is the response variable in this study and what type of variable is it? Whether muscle mass was higher or lower at the end of the study, which is categorical Whether muscle mass was higher or lower at the end of the study. which is quantitative Type of drink the young man consumed after exercising, which is categorical Type of drink the young man consumed after exercising. whilich is quantitative Gain in muscle mass during the 12 week period, which is categorical Gain in muscle mass during the 12 week period, which is quantitative

Answer 1

The response variable in this study is the gain in muscle mass during the 12-week period, which is a quantitative variable. The type of drink the young men consumed after exercising is a categorical variable.

Step-by-step explanation:

The response variable in this study is the gain in muscle mass during the 12-week period. It is a quantitative variable because it represents a measurable quantity, in this case, the increase in muscle mass.

The type of drink the young men consumed after exercising is the categorical variable. It is not the response variable in this study, but rather an explanatory variable being compared to see its effect on the gain in muscle mass.

Therefore, the response variable is quantitative (the gain in muscle mass) and the type of drink consumed is categorical.