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Small n-one sample t-test

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Small N, One Sample T-test

(Difference in Sample Proportions): A random sample of 31 recovering drug users received a novel treatment. After two years, .40 of users relapsed. The national average for two-year relapse is .56. Did the novel treatment have a statistically significant effect at an alpha level of .05? Does the conclusion differ if one does a one or a two tail test?

Reference no: EM133266089

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