the critical value for a one sided test with level a 0025 b

the critical value for a one sided test with level a = 0.025 based on the t(5) distribution

a. 2.447

b. 19.60

c. 2.776

d. 2.571

The critical value for an 80% confidence interval based on the t(21) distribution

a. 1.323

b. 1.325

c. 1.282

d. 1.321

Solution

the critical value for a one sided test with level a = 0.025 based on the t(5) distribution

a. 2.447

b. 19.60

c. 2.776

d. 2.571 ( from t table with 5 DF, one sided)

The critical value for an 80% confidence interval based on the t(21) distribution

a. 1.323 ( from t table with 21 DF, two sided)

b. 1.325

c. 1.282

d. 1.321