There Have Been Many Studies That Looked at the Incidence

question 100

Multiple Choice

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. 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?

• A)34.3
• B)36.0
• C)40.2
• D)28.6
• E)Not within ± 1 of any of the above

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