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Chapter 8: Q. 9.130 (page 391)

Right-Tailed Hypothesis test and CIs.In Exercise 8.146 on page 345, We introduce one-sided one-mean t-intervals. The following relationship hold between hypothesis test and confidence interval for one-mean t procedures: For a right-tailed hypothesis test at significance level α: the null hypothesis H0:μ=μ0will be rejected in the favor of alternative hypothesis Ha:μ>μ0if and only if μ0is greater than or equals to (1-α)-level confidence interval for μ. In each case illustrate the preceding relationship by obtaining the one mean t-interval and comparing the result to the conclusion of the hypothesis test in the specified exercise.

a. Exercise 9.114(both parts) b. Exercise 9.115.

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