An environmental researcher finds that 26% of 225 city blocks randomly chosen within a particular city have
Question:
An environmental researcher finds that 26% of 225 city blocks randomly chosen within a particular city have a particular kind of environmental hazard.
a. Find the standard error of the proportion.
b. Find the 95% confidence interval for the proportion of all city blocks that are hazardous.
c. Find the 99% confidence interval for the proportion of all city blocks that are hazardous.
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Solution a Alpha 005 degrees of freedom DF 225 1 224 Standard error of the proportion formula1 b Sin...View the full answer
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Related Book For 
Elementary Statistics In Social Research
ISBN: 9780205845484
12th Edition
Authors: Jack A. Levin, James Alan Fox, David R. Forde
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