A well-known study of 22,000 male physicians was conducted to determine if taking aspirin daily reduces the chances of a heart attack. Half of the physicians were assigned a regular doze of aspirin while the other half was given a placebo. Six years later, among those who took aspirin, 104 suffered heart attacks, while among those who took placebo, 189 suffered heart attacks. Does it appear that aspirin can reduce the number of heart attacks among the sample group that took aspirin? Conduct an appropriate hypotheses testing, using a = 0.01 significance level.

A well-known study of 22,000 male physicians was conducted to determine if taking aspirin daily reduces the chances of a heart attack. Half of the physicians were assigned a regular doze of aspirin while the other half was given a placebo. Six years later, among those who took aspirin, 104 suffered heart attacks, while among those who took placebo, 189 suffered heart attacks. Does it appear that aspirin can reduce the number of heart attacks among the sample group that took aspirin? Conduct an appropriate hypotheses testing, using a = 0.01 significance level.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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