Using the t tables, software, or a calculator, estimate the values asked for in parts (a) and (b) below.
a) Find the critical value of t for a 90% confidence interval with df = 14
t= boxed 1.76 ^ 7 (Round to two decimal places as needed)
b) Find the critical value of t for a 98% confidence interval with df = 81
t = boxed .03
(Round to two decimal places as needed.)
