(ans) Find the values for each. a. ta_2 and n _ 18 for the
Chapter 7, Problem 4(choose chapter or problem)
(ans) Find the values for each.
a. \(t_{\alpha / 2}\) and n = 18 for the 99% confidence interval for the mean
b. \(t_{\alpha / 2}\) and n = 23 for the 95% confidence interval for the mean
c. \(t_{\alpha / 2}\) and n = 15 for the 98% confidence interval for the mean
d. \(t_{\alpha / 2}\) and n = 10 for the 90% confidence interval for the mean
e. \(t_{\alpha / 2}\) and n = 20 for the 95% confidence interval for the mean
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