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Statistics - Hypothesis Testing : Solution set

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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? Please see the attached file.

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Solution Summary

A complete, neat and step-by-step solution is provided to determine whether we can reject the manufacturer's claim based on the data.

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H0: p < 80%, that is, p < 0.80
H1: p > 0.80
t- test for population proportion, Upper-tailed
p = ...

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