As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last 240 applicants, 26 failed the test. (Use z Distribution Table.) 
a. 
Develop a 90% confidence interval for the proportion of applicants that fail the test. (Round your answers to 3 decimal places.) 
For the applicants the confidence interval is between and . 
b.  Would it be reasonable to conclude that more than 11% of the applicants fail the test? 

a.
The 90% confidence interval for the proportion of applicants that fail the test is,
Stepbystep procedure to obtain the value of using StatKey:
Output using the StatKey is given below:
From the output, the value of is 1.645 for 90% confidence.
The value of p^ is obtained as follows:
The 90% confidence interval i...
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