A medical researcher conjectures that smoking can result in wrinkled skin around the eyes. By observing 150
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(a) Do these data substantiate the belief that prominent wrinkles around eyes are more prevalent among smokers than nonsmokers? Answer by calculating the P-value.
(b) If the results are statistically significant, can the researcher readily conclude that smoking causes wrinkles around the eyes? Why or why not?
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Related Book For
Statistics Principles And Methods
ISBN: 9780470904114
7th Edition
Authors: Richard A. Johnson, Gouri K. Bhattacharyya
Question Posted:
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