Question: A t-table is needed.What is the t-value needed for the critical value for a one-tailed upper hypothesis test with a sample size = 40 and

A t-table is needed.What is the t-value needed for the critical value for a one-tailed upper hypothesis test with a sample size = 40 and alpha =.05?

a. 2.023

b. -1.684

c. 1.685

d. 1.684

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