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[5.7] A realtor in central valicy fonad that the setiling price (in thousand dollan) of a bous is highly correlbled with the number of bedroogis and the age or the hovose (age is is 10 if the bouse Was built 10 years ago). She collectod worte data and detived the followine regressico model. An Rosquared (coeflicient of delermination) of 0.7 is obtalined. Y=200+40X16.5X1 Where: Y is the selling price (in 5000 ), X1 is number of bedrooms, X1 is the age of the house. 5. House A has 2 bedtooms and was built 20 years ago. How much would te its expected Histing price (in $000 ), if the reahot applies above model for pricing? (a) 222 (b) 260 (c) 270 (d) 290 (c) 380 6. If house B alwo has 2 bedrooms ban is 8 yeies newer than the bevse A in above question, will its expected listing price be hipher or lower, and to how maskls pstesst compared to house A? (a) about 1.5% higher (b) about 1.59 , lower (c) about 3% higluet (d) about 3% lower (c) 4% hivber Suppose an assembly line has a devign capicity of 150 units a day, an effective capacity of120 units a day, and an efficiency rate of 60%. What is the utitization rame of this assembly ine? (a) 45% (b) 48% (c) 75% (d) 80% (c) 90% 1 Which of the Enllowing statewents about forecasting is TRUE? (a) Long-verar forteasts icod to be MORE acourate than short-4erm fococasts. (b) Forecasts of retailers tend to be MORE accurale than the forecasts of wholesalers. (c) Forecasts of individaal products tend to be MORE accurate than the forecasts of aggregated product families. (d) The "Jury of executive opinion" and "Delpbi group" are both associative forecneting. methods relied on expert panel. (e) Trend projection is NOT a time-series fotocasting model. [2-4] The quarterly sales far a specific edocational soltware over the past three years are given in the following table. Please answer the following two questions, based on this information 2. Which quarler is the peak seasoe? (a) QI (b) Q2 (c) Q3 (d) Q4 (c) cannot determind 3. The company has focecasted thas the annal demand for YEAR 4 is 1,000 What will be the forcesast for Quarter 4 in YEAR 4? (a) 200 (b) 225 (c) 250 (d) 300 (c) 1,200 4. The demand for a given product is formulated by the linear trend equation: y=607t. Based on this information, until the end of which period that there will be NO demard at all for this product? (a) period 6 (b) period 7 (c) perind 8 (d) period 9 (c) period 10

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