The following MINITAB output presents the

Chapter 6, Problem 12E

(choose chapter or problem)

The following MINITAB output presents the results of a hypothesis test for the difference $\mu_X-\mu_Y$ between two population means:

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

b. What is the null hypothesis?

c. Can $H_0$ 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 $\mu_X-\mu_Y$ based on the z statistic.

Equation Transcription:

${\mu{}}_{X}-{\mu{}}_{Y}$

${H}_{0}$

${\mu{}}_{X}-{\mu{}}_{Y}$

Text Transcription:

mu_X-mu_Y

H_0

mu_X-mu_Y

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