The Analysis of Biological Data
2nd Edition
ISBN: 9781936221486
Author: Michael C. Whitlock, Dolph Schluter
Publisher: W. H. Freeman
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Chapter 6, Problem 30AP
a)
To determine
To explain whether the conclusion made is correct or not.
b)
To determine
To explain whether the conclusion made is correct or not.
c)
To determine
To explain whether the conclusion made is correct or not.
d)
To determine
To explain whether the conclusion made is correct or not.
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A consumer advocacy group wanted to study whether different airline carriers differed in terms of their delayed flights. In particular, the researchers were interested in the relationship between p1, the proportion of Alpha Airlines flights that were delayed at least 15 minutes, and p2, the proportion of Beta Airlines flights that were delayed at least 15 minutes. A random sample of 1,000 Alpha flights and a separate random sample of 1,000 Beta flights found that 67 of the Alpha fights and 160 of the Beta flights were delayed at least 15 minutes. The conditions for inference were checked and verified.
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A study was performed on 200 elementary school students to investigate whether regular Vitamin A supplementation was effective in preventing colds during the month of March. 100 were randomized to receive daily Vitamin A supplements during the month of March, and 100 students were randomized to a placebo group (and did not receive Vitamin A) during the same month. The number of students getting at least one cold in March was computed in the two groups, and the results are given in the following 2 X 2 table. Using a 5% level of significance determine whether there is an association between Vitamin A supplementation and prevention of Common Cold
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Chapter 6 Solutions
The Analysis of Biological Data
Ch. 6 - Prob. 1PPCh. 6 - Prob. 2PPCh. 6 - Prob. 3PPCh. 6 - Prob. 4PPCh. 6 - Prob. 5PPCh. 6 - Prob. 6PPCh. 6 - Prob. 7PPCh. 6 - Prob. 8PPCh. 6 - Prob. 9PPCh. 6 - Prob. 10PP
Ch. 6 - Prob. 11PPCh. 6 - Prob. 12PPCh. 6 - Prob. 13PPCh. 6 - Prob. 14PPCh. 6 - Prob. 15APCh. 6 - Prob. 16APCh. 6 - Prob. 17APCh. 6 - Prob. 18APCh. 6 - Prob. 19APCh. 6 - Prob. 20APCh. 6 - Prob. 21APCh. 6 - Prob. 22APCh. 6 - Prob. 23APCh. 6 - Prob. 24APCh. 6 - Prob. 25APCh. 6 - Prob. 26APCh. 6 - Prob. 27APCh. 6 - Prob. 28APCh. 6 - Prob. 29APCh. 6 - Prob. 30AP
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