OPER1135 Lecture Notes - Lecture 15: Parallel Parking, Standard Deviation, Confidence Interval
9 Apr 2015
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1. state the null hypothesis, h0 and the alternative hypothesis, ha. 3. determine the appropriate test statistic and sampling distribution. 6. make the statistical decision and state the managerial conclusion. If the test statistic falls into the non rejection region, do not reject the null hypothesis h0. If the test statistic falls into the rejection region, reject the null hypothesis. Express the managerial conclusion in the context of the problem. Each unit in the first sample has a corresponding unit in the second. There is gray area here: sometimes it"s a point of contention whether a unit has a close- enough match in another sample. Recap: we learned two types of tests to compare the differences in means between two populations. If you have paired samples (each observation in one sample has a corresponding observation in the other) use the paired t-test. 1. state the null hypothesis, h0 and the alternative hypothesis, h1. 2. choose the level of significance, a, and the sample size, n.
