Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 35 minutes and a standard deviation of 4 minutes, while method B has a mean of 39 minutes and a standard deviation of 2.0 minutes. (a) Which procedure is preferred if the procedure must be completed within 35 minutes? O Method A O Method B O Either Method (b) Which procedure is preferred if the procedure must be completed within 45.0 minutes? O Method A O Method B O Either Method (c) Which procedure is preferred if the procedure must be completed within 43 minutes? O Method A All.L- dn