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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