Which of the following is a reason for the shrinking of the middle class in the
united states?
o
a. people are not saving as much money as they used to.
o
b. blue collar wages have been increasing as fast as other kinds of
work.
o
c. some jobs are being outsourced to other countries.
o
d. people are replacing robots in many manufacturing jobs.

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?