Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 31 minutes and a standard deviation of 4 minutes, while method B has a mean of 35 minutes and a standard deviation of 2.0 minutes.
(a) Which procedure is preferred if the procedure must be completed within 33 minutes?
multiple choice 1
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Method A
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Method B
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Either Method
(b) Which procedure is preferred if the procedure must be completed within 41.0 minutes?
multiple choice 2
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Method A
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Method B
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Either Method
