7.39 Coffee, depression, and physical activity. Caffeine is the world's most widely used stimulant, with approximately 80% consumed in the form of coffee. Participants in a study investigating the relationship between coffee consumption and exercise were asked to report the number of hours they spent per week on moderate (e.g., brisk walking) and vigorous (e.g., strenuous sports and jogging) exercise. Based on these data the researchers estimated the total hours of metabolic equivalent tasks (MET) per week, a value always greater than 0. The table below gives summary statistics of MET for women in this study based on the 36 amount of coffee consumed. Caffeinated coffee consumption 1 cup/day 1 cup/week 2-6 cups/week 2-3 cups/day > 4 cups/day Total Mean 18.7 19.6 19.3 18.9 17.5 SD 21.1 25.5 22.5 22.0 22.0 12,215 6,617 17,234 12,290 2,383 50,739 n (a) Write the hypotheses for evaluating if the average physical activity level varies among the different levels
7.39 Coffee, depression, and physical activity. Caffeine is the world's most widely used stimulant, with approximately 80% consumed in the form of coffee. Participants in a study investigating the relationship between coffee consumption and exercise were asked to report the number of hours they spent per week on moderate (e.g., brisk walking) and vigorous (e.g., strenuous sports and jogging) exercise. Based on these data the researchers estimated the total hours of metabolic equivalent tasks (MET) per week, a value always greater than 0. The table below gives summary statistics of MET for women in this study based on the 36 amount of coffee consumed. Caffeinated coffee consumption 1 cup/day 1 cup/week 2-6 cups/week 2-3 cups/day > 4 cups/day Total Mean 18.7 19.6 19.3 18.9 17.5 SD 21.1 25.5 22.5 22.0 22.0 12,215 6,617 17,234 12,290 2,383 50,739 n (a) Write the hypotheses for evaluating if the average physical activity level varies among the different levels
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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hypothesis testing, conditions and filling in the table

Transcribed Image Text:7.39 Coffee, depression, and physical activity. Caffeine is the world's most widely used stimulant, with
approximately 80% consumed in the form of coffee. Participants in a study investigating the relationship
between coffee consumption and exercise were asked to report the number of hours they spent per week on
moderate (e.g., brisk walking) and vigorous (e.g., strenuous sports and jogging) exercise. Based on these
data the researchers estimated the total hours of metabolic equivalent tasks (MET) per week, a value always
greater than 0. The table below gives summary statistics of MET for women in this study based on the
36
amount of coffee consumed.
Caffeinated coffee consumption
1 cup/day
1 cup/week
2-6 cups/week
2-3 cups/day
> 4 cups/day
Total
Mean
18.7
19.6
19.3
18.9
17.5
SD
21.1
25.5
22.5
22.0
22.0
12,215
6,617
17,234
12,290
2,383
50,739
n
(a) Write the hypotheses for evaluating if the average physical activity level varies among the different levels
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