Question 22
1 pts
A health psychologist is interested in testing the relationship between the number of hours
of exercise people do each week and the number of sick days they use per year. The results
of four people studied are:
Exercise Hours Per Week (X) Sick Days Per Year (Y)
4 6
4 7
0 10
8 5
Which of the following is a list of the cross products of the z-scores for exercise hours per
week and sick days per year? (the right answer has the values in the same order as the pairs
of score presented above)
1, 0, 9, 4
-0.5345, 0, 1.6036, -1.0691
0, 0, -1.4142, 1.4142
0, 0, -2.2678, -1.5119
