For many years a program of psychotherapy has been conducted at a state hospital. It has been
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For many years a program of psychotherapy has been conducted at a state hospital. It has been found that among patients treated successfully in the past, the average time under treatment was 220 hours, with a standard deviation s of 40 hours. A new treatment has just been developed, and for a sample of size 25, the mean was approximately the same although the sample?
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Related Book For
Statistics Probability Inference And Decision
ISBN: 9780030778056
1st Edition
Authors: Robert L. Winkler, William L. Hays
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