Physicians at a clinic gave what they thought were drugs to 860 patients Although the doctors later learned that the drugs were

Question

Physicians at a clinic gave what they thought were drugs to 860 patients Although the doctors later learned that the drugs were really placebos 56 of the patients reported an improved condition Assume that if the placebo is ineffective the probability of a patients condition improving is 0 52 Test the hypotheses that the proportion of patients improving is 0 52 Find the test statistics Z Find the p value p

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