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Under the appropriate null hypothesis, what is the expected number of heart attacks that occur on Monday?

Under the appropriate null hypothesis, what is the expected number of heart attacks that occur on Monday?

MATLAB: An Introduction with Applications
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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There have been many studies that looked at the incidence of heart attack on the different days of the week. Studies in Japan and Scotland seemed to find that there was a substantial "spike" in heart attacks on Mondays, perhaps as much as 20% more. A researcher studied a random selection of 200 heart attack victims and recorded the day of the week that their attack occurred. The following table summarizes the results. Day Sunday Monday Tuesday Wednesday Thursday Friday Saturday Count 24 36 27 26 32 26 29 The researcher was interested in whether the distribution of heart attacks was the same or different across the days of the week. Under the appropriate null hypothesis, what is the expected number of heart attacks that occur on Monday? 36.0 28.6 Not within ± 1 of any of these 34.3 40.2
Transcribed Image Text:There have been many studies that looked at the incidence of heart attack on the different days of the week. Studies in Japan and Scotland seemed to find that there was a substantial "spike" in heart attacks on Mondays, perhaps as much as 20% more. A researcher studied a random selection of 200 heart attack victims and recorded the day of the week that their attack occurred. The following table summarizes the results. Day Sunday Monday Tuesday Wednesday Thursday Friday Saturday Count 24 36 27 26 32 26 29 The researcher was interested in whether the distribution of heart attacks was the same or different across the days of the week. Under the appropriate null hypothesis, what is the expected number of heart attacks that occur on Monday? 36.0 28.6 Not within ± 1 of any of these 34.3 40.2
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