Question

The director of human resources at Corcoran and Rios wants to estimate the difference between the Proportion of male employees who smoke and the proportion of female employees who smoke. She takes a simple random sample of 100 male employees from the population of male employees at the firm and finds that 27% of the males in the sample are smokers. In a similar sample of 100 female employees, 21% are smokers. Construct a 90% confidence interval estimate of the actual difference in the male female proportions for the entire firm.


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  • CreatedJuly 16, 2015
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