Suppose you are waiting in line to check out at a grocery store and there are 7 other customers in front of you (so you are customer 8). By inspecting the amount of items in their baskets, you estimate the following check-out time in minutes:Customer 1 2 3 4 5 6 7 8Check out time 10 5 3 7 5 10 2 5Required:a. What would be the scheduling model for this situation (environment, restriction, constraints) if you wish to minimize the total time in system? Use the appropriate scheduling notation. b. Calculate the objective function value for the sequence of customers of 1 to 8 to minimize the total time in system. Draw a Gantt chart that shows completion time values. c. If it is up to you to sequence the customers in any order you wish, how would you sequence them including yourself to find the minimum time in system for all of them (mention which method would you use. Do not enumerate all possibilities to find the best one, and don’t give yourself extra priority). Draw a Gantt chart that shows completion time values. d. How would you sequence the customers including yourself to process all of them as soon as possible? What would the objective function be in this case and what is its value? Show your calculations and draw a Gantt chart that show completion time values

The total value of your portfolio is $10,000: $3,000 of it is invested in stock a and the remainder invested in stock b. stock a has a beta of 0.8; stock b has a beta of 1.2. the risk premium on the market portfolio is 8%; the risk-free rate is 2%. additional information on stocks a and b is provided below. return in each state state probability of state stock a stock b excellent 15% 15% 5% normal 50% 9% 7% poor 35% -15% 10% what are each stock’s expected return and the standard deviation? what are the expected return and the standard deviation of your portfolio? what is the beta of your portfolio? using capm, what is the expected return on the portfolio? given your answer above, would you buy, sell, or hold the portfolio?

Onsider the following subscription behavior information from genie, a web site that provides tools for constructing a family tree (ancestor search). subscriptions cost $9.99 per month, but you are charged for the entire year at the time of purchase. there is a one-year minimum term when you sign up for the service. once purchased, subscriptions are set to renew automatically unless the subscriber cancels them. when a membership renews, it renews for a one-year term and again you are charged for the entire year. there are no variable costs associated with providing this service to an individual customer, but genie does engage in customer relationship activities that they believe will increase customer retention. these customer relationship activities cost genie about $10 per year per customer. based on a sample of 1000 customers that joined genie five years ago, near the time when the company was founded, they were able to determine how many of those customers remained subscribers in the second year, third year etc. based on this information, genie calculated the average annual retention rate to be 20%. genie uses an annual discount rate of 8%. a. last year, genie spent $10,000 placing advertisements on google. genie management believes that these advertisements were responsible for about 300 new subscribers. would you recommend to genie management that they purchase more google ads? b. suppose a newly-introduced loyalty program increases the number of customers that remained to 30%. does this new data change your answer to 9.a? c. do you have any hesitations or concerns about making recommendations to management based on your above estimate of customer lifetime value?

Lester's fried chick'n purchased its building 11 years ago at a cost of $189,000. the building is currently valued at $209,000. the firm has other fixed assets that cost $56,000 and are currently valued at $32,000. to date, the firm has recorded a total of $49,000 in depreciation on the various assets it currently owns. current liabilities are $36,600 and net working capital is $18,400. what is the total book value of the firm's assets? $251,000 $241,000 $232,600 $214,400 $379,000