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