STAT 102 Midterm: STAT 102 UPenn hyppracFall 2001. Solutions
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= < we can use the equal-variance 2-sample t-test. P-value between 2(. 01) and 2(. 005)---that is, between . 02 and . 01. Since the p-value is less than 0. 05 we reject the null hypothesis and conclude that there is sufficient evidence to conclude that the 2 training methods differ. From the data we can see that agents trained using the aaa method complete their service calls faster on average: 95% confidence interval for the average difference in service call times (other-aaa): (use 140t x. Since the p-value is not less than . 01 we do not reject the null hypothesis. There is not sufficient evidence (at the 1% level of significance) to reject the claim made by creative good. 0022298 / 40 since 39t not on t-table) is <2(. 005)=. 01. Since the p-value is less than . 01 we. P-value (use 35t reject the null hypothesis and conclude that the population average weight is not 0. 250.
