Assignment: Descriptive Statistics Worksheet
1) A researcher is interested to learn if there is a linear relationship between the hours in a week spent exercising and a person's life satisfaction. The researchers collected the following data from a random sample, which included the number of hours spent exercising in a week and a ranking of life satisfaction from 1 to 10 (1 being the lowest and 10 the highest).
|
Participant
|
Hours of Exercise
|
Life Satisfaction
|
|
1
|
3
|
1
|
|
2
|
14
|
2
|
|
3
|
14
|
4
|
|
4
|
14
|
4
|
|
5
|
3
|
10
|
|
6
|
5
|
5
|
|
7
|
10
|
3
|
|
8
|
11
|
4
|
|
9
|
8
|
8
|
|
10
|
7
|
4
|
|
11
|
6
|
9
|
|
12
|
11
|
5
|
|
13
|
6
|
4
|
|
14
|
11
|
10
|
|
15
|
8
|
4
|
|
16
|
15
|
7
|
|
17
|
8
|
4
|
|
18
|
8
|
5
|
|
19
|
10
|
4
|
|
20
|
5
|
4
|
2) Find the mean hours of exercise per week by the participants.
3) Find the variance of the hours of exercise per week by the participants.
4) Determine if there is a linear relationship between the hours of exercise per week and the life satisfaction by using the correlation coefficient.
5) Describe the amount of variation in the life satisfaction ranking that is due to the relationship between the hours of exercise per week and the life satisfaction.
6) Develop a model of the linear relationship using the regression line formula.
Format your assignment according to the following formatting requirements:
(1) The answer should be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides.
(2) The response also includes a cover page containing the title of the assignment, the student's name, the course title, and the date. The cover page is not included in the required page length.
(3) Also include a reference page. The Citations and references should follow APA format. The reference page is not included in the required page length.