Question: 13.51 Tests from confidence intervals. A 95% confidence interval for a population mean is 31.5 3.4. Use the method described in the previous exercise

13.51 Tests from confidence intervals. A 95% confidence interval for a population mean is 31.5 ± 3.4. Use the method described in the previous exercise to answer these questions.

(a) With a two-sided alternative, can you reject the null hy pothesis that fx = 34 at the 5% (a = 0.05) significance level?

Why or why not?

(b) With a two-sided alternative, can you reject the null hy pothesis that /X = 35 at the 5% significance level? Why or why not?

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