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Consider the hypothesis test given by
H 0 : p = 0.5
H 1 : p > 0.5
In a random sample of 625 subjects, the sample proportion is found to be ˆp = 0.55.
(a) Determine the test statistic. Show all work; writing the correct test statistic, without supporting work, will receive no credit.
(b) Determine the P-value for this test. Show all work; writing the correct P-value, without supporting work, will receive no credit.
(c) Is there sufficient evidence to justify the rejection of H0 at the a = 0.01 level? Explain.
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