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Business, 20.11.2019 07:31 navarreteanamen123

"it is estimated that the agreement of union contract among population is between 0.4 and 0.6. the sponsors of the union would like to survey union members and get a 95 percent confidence interval for the true proportion of people in favor of the contract. they want to restrict the error level to 3.6 percentage points (3.6%). given the likelihood of the survey being delivered to a qualified union member is 0.8 (incidence rate), and the response rate is 0.8, how many surveys should they send out? "

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