![]() This one-sided test has greater power to determine whether the treated wood beams are stronger than the untreated beams, but it cannot determine whether the treated beams are less strong than the untreated beams.įor more information on selecting a one-sided or two-sided alternative hypothesis, go to About the null and alternative hypotheses. Each beam is cut in half one half is treated and the other half is untreated. ![]() This one-sided test has greater power than a two-sided test, but it cannot determine whether the difference is less than 0.įor example, a quality analysis uses this one-sided test to determine whether treated wood beams are stronger than untreated beams. In this case we have our data in the Minitab worksheet so we will use the default One or more samples, each in a column Double click the variable Height in the. Use this one-sided test to determine whether the difference in paired means between sample 1 and sample 2 is greater than 0, and to get a lower bound. From Alternative hypothesis, select the hypothesis that you want to test: ![]()
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