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BUS I411 OPS MGMT Assignment

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Question;1.y-hat = 14 + 7.34xy-hat = 3 + 25 In(x)In(y-hat) = 2 + 0.08x, se = 0.06In(y-hat) = 2.5 + 0.48 In(x), se = 0.16a.Interpret the slope coefficient in each of the above estimated models, when x increase by one unit in Models 1 and 3 and by 1% in Models 2 and 4.(Round your answers to 2 decimal places.)Model 1: y-hat increases by units.7.34Model 2: y-hat increases by about units. 0.25Model 3: y-hat increases by about percent. 8.00Model 4: y-hat increases by about percent..482.b.For each model, what is the predicted change in y when x increases by 6%, from 10 to 10.6?(Round intermediate calculations to 4 decimal places and final answers to 2 decimalplaces.)Model 1: y-hat increases by units.4.40Model 2: y-hat increases by units. 1.46Model 3: y-hat increases by percent. 4.92Model 4: y-hat increases by percent. 2.843. Consider the sample regressions for the linear, the logarithmic, theexponential, and the log-log models. For each of the estimated models,predict y when x equals 57. (Do not round intermediate calculations.Round your answers to 2 decimal places.)Response Variable: ResponseyVariable: ln(y)Model 1Model 2Model 3Model 4Intercept15.135.511.220.83X1.42NA0.05NAln(x)NA24.45NA0.77se19.5416.100.120.10y-hatModel 1Model 2Model 3Model 44. Eva, the owner of Eva's Second Time Around Wedding Dresses, currently has five dresses to be altered, shown in the order in which they arrived:If Eva uses the shortest processing time first priority rule to schedule these jobs, what will be the average job tardiness?2 hours5. Eva, the owner of Eva's Second Time Around Wedding Dresses, currently has five dresses to be altered, shown in the order in which they arrived:If Eva uses the shortest processing time first (SPT) priority rule to schedule these jobs, what will be the average completion time?3 hours5 hours7 hours

 

Paper#46113 | Written in 18-Jul-2015

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