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# carver memorial hospital's surgeons have a new procedure that they think will decrease the time to perfroem an appendctomy.

carver memorial hospital's surgeons have a new procedure that they think will decrease the time to perfroem an appendctomy. A sample of 38 appendectomies using the old method had a mean of 36 minutes with a variance of 18 minutes, while a sample of 30 appendectomies using the new exprimental method had a mean of 29 minutes with a variance of 16 mintues. Use 1=.10 for all test.