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We wish to test the claim that 22 at a level of significance of 0.05. We are given sample statistics n 35 and x-bar 21.1. Moreover, we are told that the population SD is ?-2.7. Compute the test statistic, rounded to two decimal places. -2.86 -3.12 We wish to test the claim that ? s 38 at a level of significance of ?-0.01 We are given sample statistics n40, and x-bar 39.8. Moreover, we are told that the population SD is ?-4.3. Compute the test statistic, rounded to two decimal places ? 3.51 1 .96 2.65 ? 2.12

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