Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 28 minutes and a standard deviation of 4 minutes, while method B has a mean of 32 minutes and a standard deviation of 2.0 minutes.

(a) Which procedure is preferred if the procedure must be completed within 29 minutes?

multiple choice 1 Method A Method B Either Method

(b) Which procedure is preferred if the procedure must be completed within 38.0 minutes?

multiple choice 2 Method A Method B Either Method

(c) Which procedure is preferred if the procedure must be completed within 36 minutes?

multiple choice 3 Method A Method B Either Method