In a clinical test with 2219 subjects, 70% showed improvement from a given treatment. Find the margi
Question: Find the value of \({{z}_{\alpha /2}}\) that corresponds to a level of confidence of 97.80 percent.
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Deliverables: Word Document
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(See Solution) Consider the following statement: The Physicians Health Study is a randomized, double-blind, placebo #1656
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