The following MINITAB output presents the results of a hypothesis test for the difference X ??
Question:
The following MINITAB output presents the results of a hypothesis test for the difference μX?? μYbetween 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 μX ?? μY.
Transcribed Image Text:
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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