Stanley Inc., has a need for a specific component in there manufacturing process. They has requested bids from three of it's subcontractors. Company A has an initial cost of $47,500.00 and variable costs of $76.00 per unit. Company B has an initial cost of $66,000 and variable costs of $56.75 per unit. Company C has an initial cost of $75,000 and variable costs of $51.50 per unita. A. What are the crossover points?
B. At what output does Company B become less expensive than company A?
C. At what output does Company C become less expensive than Company B?
D. The forecasted amount of components required for the manufacturing process 1,500 units, which company should Stanley Inc. choose?

Rate of return, standard deviation, coefficient of variation personal finance problem mike is searching for a stock to include in his current stock portfolio. he is interested in hi-tech inc.; he has been impressed with the company's computer products and believes hi-tech is an innovative market player. however, mike realizes that any time you consider a technology stock, risk is a major concern. the rule he follows is to include only securities with a coefficient of variation of returns below 1.07. mike has obtained the following price information for the period 2015 through 2018:hi-tech stock, being growth-oriented, did not pay any dividends during these 4 years. a. calculate the rate of return for each year, 2015 through 2018, for hi-tech stock. b. assume that each year's return is equally probable and calculate the average return over this time period. c. calculate the standard deviation of returns over the past 4 years. (hint: treat this data as a sample.) d. based on b and c determine the coefficient of variation of returns for the security. e. given the calculation in d what should be mike's decision regarding the inclusion of hi-tech stock in his portfolio?