Fashionables is a franchisee of The UnLimited, the well-known retailer of fashio

Question

Fashionables is a franchisee of The UnLimited, the well-known retailer of fashionable clothing. Prior to the winter season, The UnLimited offers Fashionables the choice of five different colors a particular sweater design. The sweaters are knit overseas by hand, and because of the lead times involved, Fashionables will need to order its assortment in advance of the selling season As per the contracting terms offered by The UnLimited, Fashionables will also not be able to cancel, modify or reorder sweaters during the selling season. Demand for each color during the season is normally distributed with a mean of 500 and a standard deviation of 225. Further, you may assume that the demand for each sweater is independent of the demand for any other color. The UnLimited offers the sweaters to Fashionables at the wholesale price of $45 per sweater, and Fashionables plans to sell each sweater at the retail price of $74 per unit. The UnLimited does not accept any returns of unsold inventory. However, Fashionables can sell all of the unsold sweaters at the end of the season at the fire-sale price of $25 each. If a part of the question specifies whether to use Table 13.4, or to use Excel, then credit for a correct answer will depend on using the specified method How many units of each sweater-type should Fashionables order to maximize its expected profit? Use Table 13.4 and round to nearest integer. If Fashionables wishes to ensure a 97.5% in-stock probability, what should its integer. b. order quantity be for each type of sweater? Use Table 13.4 and round to nearest c Say Fashionables orders 650 of each sweater. What is Fashionables' expected profit? Use Table 13.4 Say Fashionables orders 650 of each sweater. What is the stockout probability for each sweater? Use Excel. d. Round your answer to 4 decimal places.)

Explanation / Answer

Fashionables' shortage or Underage cost, Cu = retail price - wholesale price offered by UnLimited = 74-45 = 29

Excess or overage cost, Co = 45-25 = 20

Critical ratio = Cu/(Cu+Co) = 29/(29+20) = 0.5918

Looking F(z) = 0.5918 in table , the corresponding z value is between 0.2 and 0.3 , exact value is determined by interpolation, z = 0.2322

Quantity Fashionales should order to maximize profit = µ + z* = 500 + 0.2322*225 = 552

b) For 97.5%, in-stock probability, lookupF(z) = 0.975 and corresponding z value = 1.96 (by interpolation)

Optimal order quantity = 500+1.96*225 = 941

c) With Q=650, z = (650-500)/225 = 0.667

In table, for z = 0.667, Lookup I(z) =0.8178   (by interpolation)

Expected inventory, V = 0.8178*225 = 184

Expected sales, S = 650-184 = 466

Expected Profit = S*Cu - V*Co = 466*29 - 184*20 = $ 9,834

d) Lookup F(z) for z = 0.667

F(z) = 0.7475

Therefore stockout probability = 1 - 0.7475 = 0.2525

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