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 5% level? How can you tell?
d. The output presents a Student??s t test. Compute the P-value using a z test. Are the two results similar?
e. Use the output and an appropriate table to compute a 99% confidence interval for μX??? μY based on the z statistic.
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