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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
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In an observational study at Turner Field in Atlanta, Georgia, 43% of the men were observed not washing their hands after going to the bathroom (see Exercise 7.80). Suppose that in a random sample of 95 men who used the bathroom at Camden Yards in Baltimore, Maryland, 26 did not wash their hands.
a. Using the critical-value approach and α = .10, test whether the percentage of all men at Camden Yards who use the bathroom and do not wash their hands is less than 43%.
b. How do you explain the Type I error in part a? What is the probability of making this error in part a?
c. Calculate the p-value for the test of part a. What is your conclusion if α = .10?
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