Concept explainers
a)
To determine: The number of units of each product should the company stock to maximize its value.
Linear programming:
It is a mathematical modeling procedure where a linear function is maximized or minimized subject to certain constraints. This method is widely useful in making a quantitative analysis which is essential for making important business decisions.
b)
To determine: The extra value gained for the extra 2,500 square feet of floor space and to identify the value from 5,000 .extra square feet is twice the value obtained from 2,500 square feet.
Linear programming:
It is a mathematical modeling procedure where a linear function is maximized or minimized subject to certain constraints. This method is widely useful in making a quantitative analysis which is essential for making important business decisions.
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Chapter 4 Solutions
Practical Management Science
- Tom is a habitual shopper at garage sales. Last Saturday he stopped at one where there were several types of used building materials for sale. At the low prices being asked, Tom knew that he could resell the items in another town for a substantial gain. Four things stood in his way: he could only make one round trip to resell the goods; his pickup truck bed would hold only 1200 pounds; the pickup truck bed could hold at most 80 cubic feet of merchandise; and he had only $190 cash with him. He wants to load his truck with the mix of materials that will yield the greatest profit when he resells them. Formulate (define objective function and constraints) and solve this problem (using excel solver) as a linear program.arrow_forwardFormulate and then solve a linear programming model of this problem, to determine how manycontainers of each product to produce tomorrow to maximize profits. The company makes fourjuice products using orange, grapefruit, and pineapple juice.Product Retail Price per QuartOrange juice $1.00Grapefruit juice .90Pineapple juice .80All-in-One 1.10The All-in-One juice has equal parts of orange, grapefruit, and pineapple juice. Each product isproduced in a one-quart size (there are four quarts in a gallon). On hand are 400 gallons of orangejuice, 300 gallons of grapefruit juice, and 200 gallons of pineapple juice. The cost per gallon is$2.00 for orange juice, $1.60 for grapefruit juice, and $1.40 for pineapple juice.In addition, the manager wants grapefruit juice to be used for no more than 30 percent of thenumber of containers produced. She wants the ratio of the number of containers of orange juice tothe number of containers of pineapple juice to be at least 7 to 5.arrow_forwardProducts A,B, and C are sold door-to-door. A costs $ 3 per unit, take 10 minutes to sell (on the average) and costs $0.50 to deliver to customer. B costs $ 5, takes 15 minutes to sell, and is left with the customer at the time of sale. C costs $ 4, takes 12 minutes to sell, and costs $ 1 to deliver. During any week, a salesperson is allowed to draw up to $ 500 worth of A,B,C (at cost) and is allowed delivery expenses not to exceeds $ 75. If a salesperson’s selling time is not expected to exceed 30 hours (1,800 minutes) in a week, and if the salesperson profit (net after all expenses) is $ 1 each on a unit of A and B and $ 2 on a unit of C, what combination of sales of A, B, and C will lead to maximum profit, and what is the maximum profIt?arrow_forward
- Pls help ASAP for botharrow_forwardYou may need to use the appropriate appendix table or technology to answer this question. Three firms carry inventories that differ in size. Firm A's inventory contains 2,000 items, firm B's inventory contains 5,000 items, and firm C's inventory contains 10,000 items. The population standard deviation for the cost of the items in each firm's inventory is a = 121. A statistical consultant recommends that each firm take a sample of 50 items from its inventory to provide statistically valid estimates of the average cost per item. Managers of the small rm state that because it has the smallest population, it should be able to make the estimate from a much smaller sample than that required by the larger firms. However, the consultant states that to obtain the same standard error and thus the same precision in the sample results, all firms should use the same sample size regardless of population size. (a) Using the finite population correction factor, compute the standard error for each of…arrow_forwardA home improvement store sells hydrangea plants during the spring planting season. The hydrangeas cost the store $15 per unit, and sell to customers for $45, but any leftovers at the end of the season are salvaged to a local landscaper for $7/unit. A competitor has advertised that it guarantees 99% of customers find the product they’re looking for in stock. The competitor’s posted price for hydrangeas is $50, and they salvage to the same local landscaper for $7/ hydrangea plant. If the competitor’s advertised service level is correct for hydrangeas and they follow an optimal stocking policy, what does it imply their cost per hydrangea is?arrow_forward
- Pls help ASAP for botharrow_forwardUse excel for this problem A trust officer at the Blacksburg National Bank needs to determine how to invest $150,000 in the following collection of bonds to maximize the annual return. Bond Annual Return Maturity Risk Tax Free A 9.5% Long High Yes B 8.0% Short Low Yes C 9.0% Long Low No D 9.0% Long High Yes E 9.0% Short High No The officer wants to invest at least 40% of the money in short-term issues and no more than 20% in high-risk issues. At least 25% of the funds should go in tax-free investments, and at least 45% of the total annual return should be tax free. Formulate the LP model for this problem. Create the spreadsheet model and use Solver to solve the problem.arrow_forwardCreate a spreadsheet to calculate your projected total costs, total revenues, and total profits for giving a seminar on cost estimating. Make the following assumptions: You will charge $600 per person for a two-day class. You estimate that 30 people will attend the class, but you want to change this input. Your fixed costs include $500 total to rent a room for both days, setup fees of $400 for registration, and $300 for designing a postcard for advertising. Youwill not include your labor costs for this estimate, but you estimate that you will spend at least 150 hours developing materials, managing the project, and giving the actual class. You would like to know what your time is worth given different scenarios. Youwill order 5,000 postcards, mail 4,000, and distribute the rest to friends and colleagues. Yourvariable costs include the following: $5perperson for registration plus 4 percent of the class fee per person to handle credit card processing; assume that everyone pays…arrow_forward
- The Free Cash Flow model has the following advantage over the Dividend Growth model: In the case of variable growth, it does not require the calculation of any horizon value. It can be applied even if growth rates are unknown. It can be applied to companies with variable growth in the initial years that eventually settle down to a fixed rate of growth for the long term. It can be applied to divisions of companies. O It does not require any forecasting.arrow_forwardNice-Fit is a (fictional) small business producing outfits for costume parties and specialoccasions. Custom designs can be tailored to a customer’s request. Tom and Ann are theowners of the company and source all the fabric, design the outfits and make the costumesthemselves. Tom and Ann keep spreadsheets with information on the material purchased andcostumes made, but they find it difficult to keep track of their products, raw materials, andsales. The raw materials are supplied from a fabric company in India, and the production takesplace in a manufacturing company in China. The clothing is sold at local weekend markets,sold, or rented through costume hire shops, and sold at their physical store. Tom and Annreceive a small percentage of the sales and rentals of their costumes from the hire shops.They have no information on customers other than those who request custom designsdirectly from them. In 2020, the Covid-19 pandemic had a major impact on global economies,businesses and how we…arrow_forward4. Explain how the logit model overcomes the problems associated with the Linera Probability Model in binary dependent variaraile model.arrow_forward
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,