Question

A researcher finds 4000 men over 40 who exercise regularly, have not had a heart attack, and are willing to participate in the study. She assigns 2000 of the men to a regular program of supervised exercise. The other 2000 continue their usual habits. Both groups are followed for five years and fewer heart attacks are observed in the group assigned to a regular program of supervised exercise.

Answer 1

The factor in the experiment is
A. whether a heart attack occurred.
B. use of a group continuing regular habits.
C. exercise program (supervised or usual habits).
D. the length of the study.

The response variable in this experiment is
A. whether a heart attack occurred.
B. the proportion of heart attacks occurring in the supervised exercise group.
C. whether the symptoms lessened.
D. the age of the men.

Answer 2

I think C or the first one, and the response would be A?

Answer 3

for*

Answer 4

@jim_thompson5910

Answer 5

I agree with you, but i've always been bad at stat. So hang around, wait till someone else confirms it.

Answer 6

Thanks, lets hope someone comes :)

Answer 7

@JakeV8

Answer 8

I agree with C for the factors and A for the responses.

You vary factors and observe responses. So you varied exercise and observed change in heart attack rates.

Answer 9

Thanks!