8. Forty-eight people were randomly assigned to a treatment or a control group. The stats for the treatment group (n1 = 24) are X = 21, S7= 25. The results for the control group (n2 = 24) are X2 = 18, S3= 64. Test the hypothesis that the treatment mean is greater than the control mean. List null and alternative hypotheses, rejection region & critical value, compute test statistic, and interpret results.

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8. Forty-eight people were randomly assigned to a treatment or a control group. The stats for the treatment group (n1 = 24) are
X = 21, Si= 25. The results for the control group (n2 = 24) are X2 = 18, S3=64. Test the hypothesis that the treatment mean
is greater than the control mean. List null and alternative hypotheses, rejection region & critical value, compute test statistic, and
interpret results.
Transcribed Image Text:8. Forty-eight people were randomly assigned to a treatment or a control group. The stats for the treatment group (n1 = 24) are X = 21, Si= 25. The results for the control group (n2 = 24) are X2 = 18, S3=64. Test the hypothesis that the treatment mean is greater than the control mean. List null and alternative hypotheses, rejection region & critical value, compute test statistic, and interpret results.
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