Problem 6.19 emmy is analyzing a two-stock portfolio that consists of a utility stock and a commodity stock. she knows that the return on the utility stock has a standard deviation of 40 percent and the return on the commodity stock has a standard deviation of 30 percent. however, she does not know the exact covariance in the returns of the two stocks. emmy would like to plot the variance of the portfolio for each of three cases—covariance of 0.110, 0, and –0.110 — in order to understand how the variance of such a portfolio would react. do the calculation for all three cases (0.110, 0, and -0.110), assuming an equal proportion of each stock in the portfolio. case 1, σ12 = 0.110: (round answer to 4 decimal places, e. g. 0.0768.) variance link to text case 2, rho = 0.0: (round answer to 4 decimal places, e. g. 0.0768.) variance link to text case 3, σ12 = -0.110: (round answer to 4 decimal places, e. g. 0.0768.) variance

The chromosome manufacturing company produces two products, x and y. the company president, jean mutation, is concerned about the fierce competition in the market for product x. she notes that competitors are selling x for a price well below chromosome's price of $13.50. at the same time, she notes that competitors are pricing product y almost twice as high as chromosome's price of $12.50.ms. mutation has obtained the following data for a recent time period: product x product y number of units 11,000 3,000 direct materials cost per unit $3.23 $3.09 direct labor cost per unit $2.22 $2.10 direct labor hours 10,000 3,500 machine hours 2,100 1,800 inspection hours 80 100 purchase orders 10 30ms. mutation has learned that overhead costs are assigned to products on the basis of direct labor hours. the overhead costs for this time period consisted of the following items: overhead cost item amount inspection costs $16,200 purchasing costs 8,000 machine costs 49,000 total $73,200using direct labor hours to allocate overhead costs determine the gross margin per unit for product x. choose the best answer from the list below.a. $1.93b. $3.12c. $7.38d. $2.43e. $1.73using activity-based costing for overhead allocation, determine the gross margin per unit for product y. choose best answer from list below.a. $10.07b. ($2.27)c. ($5.23)d. ($7.02)e. $7.02