. Question 8 3 Over the next few years, monthly demand for a new product is projected to follow a linear trend defined by - 8 + 36t The starting period (t = 1) of the time series is July 2020. The demand forecast for November 2022 =. Question 9 In an LP transportation problem, where ,; = units shipped from node i to j, what does the following constraint mean? CA1 + CB = 800 O supply node 1 can ship up to 800 units to demand nodes A and B O demand nodes A and B have requirements of 800 units (in total) from supply node 1 O supply nodes A and B must each produce and ship 800 units to demand node 1 O demand node 1 has a requirement of 800 units from supply nodes A and B O supply nodes A and B must produce exactly 800 units in total. Question 10 A multiple regression analysis to assess the effects of age and wage ($/hr) on productivity units produced the following output: Coefficient Standard Error t-stat p-value Intercept 22.919 4.631 4.949 0 Age 1.774 0.507 3.496 0.0022 Wage -1.091 0.395 -2.763 0.012 a) Estimate the productivity units for a 44-year-old earning $23/hr. Round to the nearest whole number. b) Which of the following best interprets the regression coefficient for Wage? O For each additional year in age, wage on average decreases by -1.091 assuming productivity is held constant. O For each additional dollar in wage, age on average increases by 1.774 assuming productivity is held constant. O For each additional productivity unit, wage on average decreases by 1.091 assuming age is held constant. O For each additional dollar in wage, productivity units on average decrease by 1.091 assuming age is held constant