Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Chapter 8, Problem 128H
Use the following information to answer the next v exercises Five hundred and eleven (511) homes in a certain southern California communcv are randomly surveyed to determine if they meet minimal earthquake preparedness recommendations. One hundred seventy-three (173) of the homes suzveved met the minimum recommendations for earthquake preparedness, and 338 did not.
128. Find the confidence interval at the 900 Confidence Level for the true population proportion of southern California community homes meeting at least the minimum recommendations fo earthquake preparedness.
a. (02975. 0.3796)
b. (0.6270. 0.6959)
C. (0.3041. 0.3730)
d. (0.6204. 0.7025)
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Chapter 8 Solutions
Introductory Statistics
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