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A Hypothesis test for a Population Proportion: z-test

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The manufacturer of a new antidepressant claims that, among all people with depression who use the drug, the proportion of people who find relief from depression is at least 80%. A random sample of 235 patients who use this new drug is selected, and 184 of them find relief from depression. Based on these data, can we reject the manufacturer's claim at the .05 level of significance?

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The solution provides step by step method for the calculation of hypothesis test for a Population Proportion . Formula for the calculation and Interpretations of the results are also included.

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