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In San Jose a sample of 73 mail carriers showed that 30 had been bitten by...

In San Jose a sample of 73 mail carriers showed that 30 had been bitten by an animal during one week. In San Francisco in a sample of 80 mail carriers, 16 had received animal bites. Is there a significant difference in the proportions? Use a 0.05. Find the 95% confidence interval for the difference of the two proportions.

Sellect all correct statements below based on the data given in this problem.


A) .0681 ? ?1 - ?2 ? .3539
B) .0681 ? p1 - p2 ? .3539
C) -.0681 ? p1 - p2 ? -.3539
D) The rate of mail carriers being bitten in San Jose is statistically less than the rate San Francisco at ? = 5%
E) The rate of mail carriers being bitten in San Jose is statistically greater than the rate San Francisco at ? = 5%

Math   Statistics-And-Probability   
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