Q1: (6’) List dates, Adj. close prices, and monthly holding period returns for the three companies. Q2: (6’) Compute monthly holding period return using Adj. close prices for each stock. Q3: (6’) Use the EXCEL statistical functions to compute mean (AVERAGE) and standard deviation (STDEV) of the monthly return for each stock. Assume that historical mean returns are good estimates of expected returns. To achieve diversification, John invests in APPLE and WALMART. Q4: What are the weights on the two stocks to achieve the optimal risky portfolio for John (4’)? What are the mean and standard deviation of returns on his optimal risky portfolio (4’)? Must show your calculation by including the formulas you used (4’). Mary instead invests in APPLE and GOLDMAN SACHS.

Maldonia has a comparative advantage in the production of , while lamponia has a comparative advantage in the production of . suppose that maldonia and lamponia specialize in the production of the goods in which each has a comparative advantage. after specialization, the two countries can produce a total of million pounds of lemons and million pounds of coffee.

Alocal club is selling christmas trees and deciding how many to stock for the month of december. if demand is normally distributed with a mean of 100 and standard deviation of 20, trees have no salvage value at the end of the month, trees cost $20, and trees sell for $50 what is the service level?

In the fall, jay thompson decided to live in a university dormitory. he signed a dorm contract under which he was obligated to pay the room rent for the full college year. one clause stated that if he moved out during the year, he could sell his dorm contract to another student who would move into the dormitory as his replacement. the dorm cost was $5000 for the two semesters, which jay had already paid a month after he moved into the dorm, he decided he would prefer to live in an apartment. that week, after some searching for a replacement to fulfill his dorm contract, jay had two offers. one student offered to move in immediately and to pay jay $300 per month for the eight remaining months of the school year. a second student offered to move in the second semester and pay $2500 to jay. jay estimates his food cost per month is $500 if he lives in the dorm and $450 if he lives in an apartment with three other students. his share of the apartment rent and utilities will be $404 per month. assume each semester is 4.5 months long. disregard the small differences in the timing of the disbursements or receipts. what is the cost of the cheapest alternative?