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Physicians at a clinic gave what they thought were drugs to 920 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 statistic, z: 2 = Find the p-value: P =

Physicians at a clinic gave what they thought were drugs to 920 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 statistic, z: 2 = Find the p-value: P =

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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find the test statistic z and p value

Physicians at a clinic gave what they thought were drugs to 920 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 statistic, z: 2 = Find the p-value: P =
Transcribed Image Text:Physicians at a clinic gave what they thought were drugs to 920 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 statistic, z: 2 = Find the p-value: P =
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