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 μ_X?? μ_Ybetween two population means.

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?

d. Use the output and an appropriate table to compute a 98% confidence interval for μ_X ?? μ_Y.

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Statistics For Engineers And Scientists

ISBN: 9780073401331

4th Edition

Authors: William Navidi

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Question Posted: Nov 16, 2018 05:38 AM

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

Question:

Paired T for X - Y X Y Difference 12 12 12 Mean 134.233 100.601 33.6316 StDev 68.376 94.583 59.5113 SE Mean 19.739 27.304 17.1794 95% lower bound for mean difference: 2.7793 T-Test of mean difference = 0 (vs > 0): T-Value 1.96 P-Val ue 0.038 ||

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Statistics For Engineers And Scientists

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