Develop a 90 percent confidence interval for the proportion, Ask an Expert

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As a condition of employment, Fashion Industries applicants must pass a drug test. Fashion Industries randomly tests its employees throughout the year. Of the last 225 applicants 28 failed the test.

1) Develop a 90 percent confidence interval for the proportion of applicants that fail the test. (Round your answers to 2 decimal places.)

For the applicants the confidence interval is between and .

2) Would it be reasonable to conclude that more than 11 percent of the applicants are now failing the test?

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Category:- Statistics and Probability
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