Carver memorial hospital’s surgeons have a new procedure that they think will decrease the time to perform an appendectomy. a sample of 8 appendectomies using the old method had a mean of 38 minutes with a variance of 36 minutes, while a sample of 10 appendectomies using the experimental method had a mean of 29 minutes with a variance of 16 minutes. for a right-tailed test for equal means (assume equal variances), the critical value at α = .10 is a. 3.814
b. 2.365
c. 3.000
d. 1.895