A group of 1440 students was surveyed in October 2018 about their sleeping patterns and consumption of caffeinated beverages. Of the 1440 students asked, 834 said they had trouble falling asleep at night, but the rest did not. Of the 834 who said they had trouble sleeping at night, 640 drank some type of caffeinated beverage after 2 pm most days. Of those who reported no trouble falling asleep at night, 108 said they drank some type of caffeinated beverage after 2 pm most days.
A group of 1440 students was surveyed in October 2018 about their sleeping patterns and consumption of caffeinated beverages. Of the 1440 students asked, 834 said they had trouble falling asleep at night, but the rest did not. Of the 834 who said they had trouble sleeping at night, 640 drank some type of caffeinated beverage after 2 pm most days. Of those who reported no trouble falling asleep at night, 108 said they drank some type of caffeinated beverage after 2 pm most days.
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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A group of 1440 students was surveyed in October 2018 about their sleeping patterns and consumption of caffeinated beverages. Of the 1440 students asked, 834 said they had trouble falling asleep at night, but the rest did not. Of the 834 who said they had trouble sleeping at night, 640 drank some type of caffeinated beverage after 2 pm most days. Of those who reported no trouble falling asleep at night, 108 said they drank some type of caffeinated beverage after 2 pm most days.
Transcribed Image Text:16. What type of study design is this? How do you know?
17. Complete the standard epidemiology table. Include the numbers and the proper headings.
2x2 table
18. Calculate the relative risk. Show formulas and work.
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