An economist conducted a study of the possible association between weekly income and weekly grocery expenditures. Of particular interest was whether higher income would result in shoppers spending more on groceries. A random sample of shoppers at a local supermarket was obtained. A questionnaire was administered asking about the weekly income of each shopper's family and their grocery bill for that week. The response variable is:
A)weekly income.
B)weekly expenditure.
C)gender.
D)None of the answer options is correct.

Question

Quizplus · Accepted Answer

The response variable in this study is the weekly grocery expenditure, as that is what the researcher is trying to analyze in relation to weekly income. The weekly income is the explanatory variable. Gender is not relevant to the research question and is not a response variable in this study. Therefore, the best choice is B, weekly expenditure.

An Economist Conducted a Study of the Possible Association Between