Chapter 7 Section 2

(a) A significance test for comparing two means gave t = -3.69 with 9 degrees of freedom. Can you reject the null hypothesis that the (’s are equal versus the two-sided alternative at the 5% significance level? P(t < -3.69) = 0.0025. Thus, the p-value = 2(0.0025) = 0.005 Yes the result is significant at 5%. ................
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