6.48 More on two-sided tests and confidence intervals. A 95% confidence interval for a population mean is (29, 58).

1. (a) Can you reject the null hypothesis that μ = 50 against the two-sided alternative at the 5% significance level? Explain.

2. (b) Can you reject the null hypothesis that μ = 60 against the two-sided alternative at the 5% significance level? Explain.