Question: Using the t tables, software, or a calculator, estimate the following: a) The critical value of t for a 90% confidence interval with df =

Using the t tables, software, or a calculator, estimate the following:

a) The critical value of t for a 90% confidence interval with df = 17.

b) The critical value of t for a 98% confidence interval with df = 88.

c) The P-value for t ≥ 2.09 with 4 degrees of freedom.

d) The P-value for t > 1.78 with 22 degrees of freedom.

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