The following MINITAB output presents the results of a hypothesis test for the difference X ??

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The following MINITAB output presents the results of a hypothesis test for the difference μX?? μYbetween two population means.

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a. Is this a one-tailed or two-tailed test?

b. What is the null hypothesis?

c. Can H0 be rejected at the 1% level? How can you tell?

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