Question

a research doctor is studying patients to determine if there is a correlation between age and the amount of time a patient exercises each week. she studies 500 patients from various age groups, records the data, and finds that the correlation coefficient is 0.12. what can she conclude about the relationship between a person’s age and the amount of time he or she spends exercising each week? there is strong evidence that as age increases, the amount of time spent exercising decreases. there is no evidence of a relationship between age and the amount of time spent exercising. there is moderately strong evidence of a relationship between age and the amount of time spent exercising. there is strong evidence that as age increases, the amount of time spent exercising increases.

Explanation:

A correlation coefficient ranges from -1 to 1. Values close to 0 indicate a very weak or no linear relationship between the variables. A coefficient of 0.12 is extremely close to 0, meaning there is no meaningful linear association between age and weekly exercise time.

Answer:

There is no evidence of a relationship between age and the amount of time spent exercising.