Marlo stanfield's operation also uses large quantities of prepaid cell phones, on average 1500 per week with a standard deviation of 145. the lead time for their own brand of prepaid cell phones is three weeks and they have a lot size of 350 phones. to ensure they never run out, they keep a safety stock of 500 phones with proposition joe. what is the standard deviation of demand during lead time?

a) 251 phones

b) 2187 phones

c) 4500 phones

d) 4751 phones

Cool beans is a locally owned coffee shop that competes with two large coffee chains, planeteuro and frothies. alicia, the owner, hired two students to count the number of customers that entered each of the coffee shops to estimate what percent of people who are interested in coffee are visiting each shop. after a week, the students found the following results: 589 visited cool beans, 839 visited planeteuro, and 1,290 visited frothies. the students were surprised that cool beans had 139 visits on monday which represented 59% of all people who visited one of the three coffee shops on mondays. how many people visited one of the three coffee shops during the week?

Which of the following is an example of a positive externality? a. promoting generic drugs would benefit people. b. a lower inflation rate would benefit most consumers. c. compulsory flu shots for all students prevents the spread of illness in the general public. d. singapore has adopted a comprehensive savings plan for all workers known as the central provident fund.

Pederson company reported the following: manufacturing costs $480,000 units manufactured 8,000 units sold 7,500 units sold for $90 per unit beginning inventory 2,000 units what is the average manufacturing cost per unit? (round the answer to the nearest dollar.)