Statistics
posted by twetwewtw .
A random sample of 384 people in a midsized city (city one) revealed 112 individuals who worked at more than one job. A second random sample of 432 workers from another midsized city (city two) found 91 people who work at more than one job. Find a 99% confidence interval for the difference between the proportions of workers in the two cities who work at more than one job.
(0.003, 0.159)
(0.021, 0.141)
(0.159, 0.004)
(0.031, 0.131)
Sample sizes aren't large enough to justify using zprocedures
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