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-tailed test of equal means (assume equal variances) , the pooled variance is:
A) 14.76
B) 26.00
C) 24.75
D) 27.54
Correct Answer:
Verified
Correct Answer:
Verified
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