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3. Test H0: Ž¼1<=Ž¼2; HA: Ž¼1 > Ž¼2 at Ž±= .05, when Xbar=75.4, Xbar=72.2, s1=3.3, s2=2.1, n1=6, n2=6. Indicate which test you are performing; show the hypotheses, the test statistic and the critical values and mention whether one-tailed or two-tailed. Here ‚µ indicates population mean and Xbar indicates the sample mean.

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