what do they mean by methods

X Question 19 - 8-1 Final Exam - ducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fnewconnect.mheducation.com%252F#/activity/question cial-ro. f Welcome to Faceb... | f Facebook HD Samsung Galaxy.. .S Glow-in-the-Dark... & Coupons Dirty JobsT Coup... f Home a Amazon Saved 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 3 minutes, while method B has a mean of 35 minutes and a standard deviation of 1.5 minutes. (a) Which procedure is preferred if the procedure must be completed within 30 minutes? O Method A O Method B O Either Method (b) Which procedure is preferred if the procedure must be completed within 39.5 minutes? O Method A O Method B O Either Method (c) Which procedure is preferred if the procedure must be completed within 39 minutes? O Method A O Method B O Either Method MacBook Pro