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In: Statistics and Probability

An article published in USA today stated that “in a study of colorectal surgery patients; 104...

An article published in USA today stated that “in a study of colorectal surgery patients; 104 were kept warm with blankets & 96 were kept cool. The results show that only 6 of those “warmed patients” developed wound infection vs. 18 who were kept cool. Let x = number of colorectal surgery patients who developed wound infection a) At the 0.02 level of significance, test the claim of the article’s headline: Warmer Surgical Patients Recover Better (higher recovery rate for Warmer Surgical Patients)

Sample 1 Sample 2

Claim:

1- H0:

H1:

2- Test Statistic:

3- Critical Region/Critical Value:

4- Decision about H0: b) (5 points) Find the P-value in part (a) and make a decision about H0

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orchestra answered 2 years ago
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