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Times for a surgical procedure are normally distributed. There are two methods. Method A has a...

Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 32 minutes and a standard deviation of 2 minutes, while method B has a mean of 36 minutes and a standard deviation of 1.0 minutes.

(a) Which procedure is preferred if the procedure must be completed within 31 minutes? Method A Method B Either Method

(b) Which procedure is preferred if the procedure must be completed within 39.0 minutes? Either Method Method A Method B

(c) Which procedure is preferred if the procedure must be completed within 38 minutes? Method B Either Method Method A

Math   Statistics-And-Probability   
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