A project has four activities (a, b, c, and

d. that must be performed sequentially. the probability distributions for the time required to complete each of the activities are as follows: activity activity time (weeks) probability a 5 0.25 6 0.35 7 0.25 8 0.15 b 3 0.20 5 0.55 7 0.25 c 10 0.10 12 0.25 14 0.40 16 0.20 18 0.05 d 10 0.60 12 0.40 the attached file, project, contains a spreadsheet simulation model to estimate the average length of the project and the standard deviation of the project length. create 2000 simulation trials. what is the project length? round your answer to one decimal place.

Mr. beautiful, an organization that sells weight training sets, has an ordering cost of $40 for the bb-1 set. (bb-1 stands for body beautiful number 1.) the carrying cost for bb-1 is $5 per set per year. to meet demand, mr. beautiful orders large quantities of bb-1 seven times a year. the stockout cost for bb-1 is estimated to be $50 per set. over the past several years, mr. beautiful has observed the following demand during the lead time for bb-1: demand during lead time probability40 0.150 0.260 0.270 0.280 0.290 0.1total 1.0the reorder point for bb-1 is 60 sets. what level of safety stock should be maintained for bb-1?