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3. Compute the multifactor productivity measure for each of the weeks shown for production of chocolate bars. What do the productivity figures suggest? Assume 40-hours work in a week and an hourly wage of $12. Overhead is 1.5 times weekly labor cost. Material cost is $6 per pound. Week Output (units) Workers Material (lbs) 1 30,000 6 450 2 33,600 7 470 3 32,200 7 460 4 35,400 8 480