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As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last...

As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last 400 applicants, 30 failed the test. a) Develop a 90% confidence interval for the proportion of applicants that fail the test. b) Would it be reasonable to conclude that 6% of applicants fail the drug test? Explain why or why not.

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