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Solve the problem. A one-sided confidence interval for p can be written as p <  + E or...

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Statistics

Solve the problem.

A one-sided confidence interval for p can be written as p<  + E or p >  - E where the margin oferror E is modified by replacing z/2 with z. If ateacher wants to report that the fail rate on a test is at most xwith 90% confidence, construct the appropriate one-sided confidenceinterval. Assume that a simple random sample of 70 students resultsin 5 who fail the test.

a) p < 0.032

b) p < 0.122

c) p > 0.032

d) p < 0.111

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AnswerGiven thatA onesided confidence interval    See Answer
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