Construct confidence interval for the population proportion

Reference no: EM13114184

In 1992, the FAA conducted 24,000 pre-employment drug tests on job applicants who were to be engaged in safety and security-related jobs, and found that 800 were positive.

(a) Construct a 95 percent confidence interval for the population proportion of positive drug tests.

(b) May you assume that this is a normal distribution? Explain why. (Check the normality of your proportion!)

Reference no: EM13114184

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