As a 401K retirement plan participant you have to make personal decisions regarding your own investment objectives.

Need help calculating answers.

As a 401K retirement plan participant you have to make personal decisions regarding your own investment objectives. Suppose you have $10,000 to divide among four investment alternatives in your 401K retirement plan. The investment alternatives and historical returns are as follows;

·        Real Estate (RE) = 8%

·        CD = 4%

·        Mutual Fund (MF) = 6%

·        Bonds = 7%

You will follow the investment allocation guidelines below.

1.      More money should be in real estate than in CDs, at a rate of at least 2 to 1. [Hint: That means that RE > 2*CD]

2.      At least 50% ($5,000) must be in mutual funds and bonds combined.

3.      No more than 20% ($2,000) can be in bonds alone.

4.      At least 2.5% ($250) must be invested in each alternative.

5.      All of the $10,000 must be invested.

Use the spreadsheet template in the worksheet named "Investment 1" to formulate and solve the LP problem for the maximum return. Note that the percentages must be expressed as proportions in the solution.

Answer the parts below, and then use the LP template to solve for the maximum profit. (4 points) Be sure to choose "assume Linear Model" and "Assume Non-negative" from Solver's Options dialogue box. 

a.               2 Points: In cell B3, use the Excel's built-in function named "SUMPRODUCT" to write formula for the objective function. Be sure to reference the appropriate cells.

b.              2 Points: In cells B9:E9, enter the investment return coefficients for the objective function. Make sure the coefficients are input as proportions, not percents.

c.               8 Points: In cells B12:E19, enter the constraint coefficients for each of the eight constraints.

d.              4 Points: In cells F12:F19, enter the appropriate constraint values.

e.               8 Points: In cells G12:G19, use the "SUMPRODUCT" function to write formula for the amount of each resource used or limitation imposed. Be sure to reference the appropriate cells.

f.               4 Points: In cells H12:H19, write the appropriate formulas to determine the amount of slack or surplus associated with each resource or limitation.

g.              4 Points: In cells I12:I19, write the type of inequality associated with each constraint using either "<=," ">=," or "=."

h.              4 Points: In cells J12:J18, write the appropriate word (either "Slack" or "Surplus") to indicate the nature of the leftover resources or limitations.