Multiple Choice
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-tail test of means (assume equal variances) ,the test statistic is:
A) 3.814
B) 2.365
C) 3.000
D) 1.895
Correct Answer:
Verified
Correct Answer:
Verified
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