In Cleveland, a random sample of 74 mail carriers showed that 12 had been bitten by an animal during one week. In Philadelphia, in a random sample of 81 mail carriers, 19 had received animal bites. Find the 95% confidence interval for the difference of the two proportions.
In Cleveland, a random sample of 74 mail carriers showed that 12 had been bitten by an animal during one week. In Philadelphia, in a random sample of 81 mail carriers, 19 had received animal bites. Find the 95% confidence interval for the difference of the two proportions.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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In Cleveland, a random sample of 74 mail carriers showed that 12 had been bitten by an animal during one week. In Philadelphia, in a random sample of 81 mail carriers, 19 had received animal bites. Find the 95% confidence interval for the difference of the two proportions.
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