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A survey claims that 9 out of 10 doctors (i., 90%) recommend brand Z for their patients who have children.

A survey claims that 9 out of 10 doctors (i.e., 90%) recommend brand Z for their patients who have children. To
test this claim against the alternative that the actual proportion of doctors who recommend brand Z is less than
90%, a random sample of 100 doctors results in 86 who indicate that they recommend brand Z. Use the p-value
method to test the claim. Use α=0.03 (Check complete instructions on top)

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A survey claims that 9 out of 10 doctors (i.e., 90%) recommend brand Z for their patients who have children. To
test this claim against the alternative that the actual proportion of...

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