Dollar Department Stores has received an offer from Harris Diamonds to purchase Dollar's store on Market Street for $120,000. Dollar has determined probability estimates of the store's future profitability, based on economic outcomes, as: P($80,000) = 0.2, P($100,000) = 0.3, P($120,000) = 0.1, and P($140,000) = 0.4.

part a :

Not considering probabilities, based on each of the following criteria, should Dollar sell the store?

1 a. Optimistic approach (Maximax)

1 b. Conservative approach (Maximin)

Part B:

Now use the given probabilities and based on each of the following criteria, should Dollar sell the store?

B 1. Expected Monetary Value (EMV)

B 2. Expected Opportunity Loss (EOL)

Part C:

Determine the Expected Value of Perfect Information (EVPI).

Part D:

A marketing firm has offered to forecast the market with 100% accuracy at a cost of $10,000. Should the offer be accepted? Why or why not.

Please go into depth and show formulas and how you got to the solution.

Air containing 2.1 mol% sulfur dioxide (SO2) is scrubbed with pure water in an absorption tower of 1.5 m2 cross-sectional area and 3.6 m height packed with structured packing materials at a pressure of 1.2 atm and a temperature of 20˚C. The surface area per unit volume of the packing, a, is 200 m2/m3.The total gas flow rate is 60 mol/s, the liquid flow rate is 1800 mol/s and the mole fraction of SO2 in the outlet gas stream is 0.3%. At the column temperature, the equilibrium relationship is given by:
y* = 25.0x
(a) Calculate NOG for the desired purification.
(b) Calculate mass transfer coefficient of liquid film (kx) if mass transfer coefficient of gas film, kp = 7.5 mol/m2-atm-s.
(c) If the packing height of the column is increased to 4.0 m (column diameter and packing materials unchanged), and the same inlet gas stream is purified by the same liquid solvent, how much is the mole fraction of SO2 in the leaving liquid and gas streams?

An ODE for Newton’s law of cooling, ??/?? + ?? = ??(?) relates indoor temperature changes u(t) to outdoor temperature changes modeled by the function ?(?) = ? + ? cos(??) + ? sin(??). k is a constant that measures how well a building is insulated and t is time in hours. Suppose your air-conditioner is broken. You want to find out how outdoor temperature effects the temperature in your house by doing the following:

(a) Find a model for outdoor temperature, A(t). Specifically find a, b and c. Use ω = π/12 for a 24-hour time period. Use estimates of the high and low temperature of your current location. Assume the high temperature occurs at 4 pm.

(b) Solve the ODE above for u(t). Use k = 0.3 (a typically insulated building) and your equation from part (a). Use u(0) = temperature at midnight in your location for the initial condition.

(c) Create a graph with both your solution function and the outdoor temperature function.

(d) When does the maximum indoor temperature occur?

A pharmacist has been monitoring sales of a certain over-the-counter pain reliever. Monthly sales during the last 15 months were:

1. Using 3-Month Weighted Moving Average using 0.2, 0.3, and 0.5 with the heaviest weights applied to the most recent months, develop forecasts for months from 11 to 16.
2. Using Exponential Smoothing using an α = 0.4 and the 10^th Month forecast of 50, develop forecasts for months from 11 to 16.  
3. Using Trend Projection, develop forecasts for months from 11 to 16.
4. Justify which method you would suggest using to predict future sales.

Question 4

A pharmacist has been monitoring sales of a certain over-the-counter pain reliever. Monthly sales during the last 15 months were:

1. Using 3-Month Weighted Moving Average using 0.2, 0.3, and 0.5 with the heaviest weights applied to the most recent months, develop forecasts for months from 11 to 16.       
2. Using Exponential Smoothing using an α = 0.4 and the 10^th Month forecast of 50, develop forecasts for months from 11 to 16.              
3. Using Trend Projection, develop forecasts for months from 11 to 16.
4. Justify which method you would suggest using to predict future sales.

​​​​Python

1. Create a new file named compute_cost.py.

2. Write your name and date in a comment.

3. Create a variable named base_fee and set the value to 5.5.

4. Prompt the user for the zone. The zones can be an integer value from 1 to any value for the zone.

5. Convert the zone to an integer.

6. Display the zone on the SenseHat with a scroll speed of 0.3, make the text blue, and the background yellow. Scroll "The zone is " and the value of the zone.

7. Compute the cost as follows. Be certain to use the and operator:

If the zone is between 1 and 4, the cost is the base_fee times 2.

Else if, the zone is 5 or 6, the cost is the base_fee times 1.755 plus 7.5.

Else if, the zone is 7, 8, or 9, the cost is the base_fee times 3.125 plus 9.5.

Else, the cost is the base_fee times 4.25.

8. Print out the cost with two decimal places of precision to the Python shell.

9. Print out the cost with exponential notation with one decimal place of precision to the Python shell.

10. Test with a zone of 2, 6, and 9.

Q3. After graduating from college, Rachel and Payton start selling birdhouses made from recycled plastic. The idea has caught on, as shown by the following sales figures:

a. (3pts). Develop a forecast model for June through September by using an adjusted exponential smoothing model with α=0.5 and β=0.3. Assume that the unadjusted forecast (Ft) for May was 2,000 and the trend factor (Tt) for May was 700.

B (3 pts). Calculate the tracking signals for periods June through August.

Greta, an elderly investor, has a degree of risk aversion of A = 3 when applied to return on wealth over a one-year horizon. She is pondering two portfolios, the S&P 500 and a hedge fund, as well as a number of one-year strategies. (All rates are annual and continuously compounded.) The S&P 500 risk premium is estimated at 7.2% per year, with a SD of 22.2%. The hedge fund risk premium is estimated at 12.2% with a SD of 37.2%. The returns on both of these portfolios in any particular year are uncorrelated with its own returns in other years. They are also uncorrelated with the returns of the other portfolio in other years. The hedge fund claims the correlation coefficient between the annual returns on the S&P 500 and the hedge fund in the same year is zero, but Greta is not fully convinced by this claim.

Calculate Greta’s capital allocation using an annual correlation of 0.3. (Do not round your intermediate calculations. Round your answers to 2 decimal places.)

please show all steps and formulas

Cornerstone Exercise 20.1 (Algorithmic)
EOQ

Thomas Corporation produces heating units. The following values apply for a part used in their production (purchased from external suppliers):

Required:

1. For Thomas, calculate the ordering cost, the carrying cost, and the total cost associated with an order size of 180 units. If required, round your answers to the nearest cent.

2. Calculate the EOQ and its associated ordering cost, carrying cost, and total cost. If required, round your answers to the nearest cent.

3. What if Thomas enters into an exclusive supplier agreement with one supplier who will supply all of the demands with smaller, more frequent orders? Under this arrangement, the ordering cost is reduced to $ 0.3 per order.

Calculate the new EOQ. (Round your answer to one decimal place.)

units

The Neal Company wants to estimate next year's return on equity (ROE) under different financial leverage ratios. Neal's total capital is $15 million, it currently uses only common equity, it has no future plans to use preferred stock in its capital structure, and its federal-plus-state tax rate is 40%. The CFO has estimated next year's EBIT for three possible states of the world: $4.8 million with a 0.2 probability, $1.5 million with a 0.5 probability, and $0.8 million with a 0.3 probability. Calculate Neal's expected ROE, standard deviation, and coefficient of variation for each of the following debt-to-capital ratios. Do not round intermediate calculations. Round your answers to two decimal places at the end of the calculations.

~Debt/Capital ratio is 0.

~Debt/Capital ratio is 10%, interest rate is 9%.

~Debt/Capital ratio is 50%, interest rate is 11%.

~Debt/Capital ratio is 60%, interest rate is 14%.