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Apr
One Tailed Z Test. For one one left or right tailed Z-test. 625 is MUCH LARGER than 1645 and so the result of the z test is INSIDE the rejection region. HOW TO Find Critical Values and Rejection Regions. Create a conclusion Our z-test result is 625.
μ 191 with a Z test statistic and selected α 005. For one one left or right tailed Z-test. The rejection region corresponds to the alternative hypothesis. In this example we are performing an upper tailed test H 1. At the level of significance as 005 a one-tailed test allows the alpha to test the statistical significance in one single direction of interest this simply implies that alpha 005 is at the one tail of distribution of test statistics. We now substitute the sample data into the formula for the test statistic identified in Step 2.
Compute the test statistic.
The rejection region corresponds to the alternative hypothesis. Suppose you want to find the rejection region for the question regarding population growth in southern and northest cities. The rejection region corresponds to the alternative hypothesis. The critical value for one-tailed z-test at alpha 05 is 1645. When to Use Z-test. This article describes the formula syntax and usage of the ZTEST function in Microsoft Excel.