Determine the t critical value for a two-sided confidence interval in each of the following situations. (Round your answers to three decimal places.)
(a) Confidence level = 95%, df = 10
(b) Confidence level = 95%, df = 20
(c) Confidence level = 99%, df = 20
(d) Confidence level = 99%, n = 5
(e) Confidence level = 98%, df = 22
(f) Confidence level = 99%, n = 34