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S09-HW Soln-Ch03

# S09-HW Soln-Ch03 - Chapter 3 Measuring Performance in...

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Chapter 3: Measuring Performance in Operations Problems, Activities, and Discussions Problem #2: A major airline is attempting to evaluate the effect of recent changes it has made in scheduling flights between New York City and Los Angeles. Data available are shown below. Number of Number of Flights Passengers Month prior to schedule change 22 8,335 Month after schedule change 24 10,608 Solution #2: Using passengers per flight as a productivity indicator, comment on the apparent effect of the schedule change. Computing passengers per flight, we obtain Month prior to schedule change: 8,335/22 = 379 Month after schedule change: 10,608/24 = 442 Productivity increased 16.6 percent (63/379) after the schedule change. This could be due to more convenient flight times or some other intervening variable. Problem #4: A hamburger factory produces 50,000 hamburgers each week. The equipment used costs \$5,000 and will remain productive for three years. The labor cost per year is \$8,000. Solution #4: What is the productivity measure of “units of output per dollar of input” averaged over the three- year period? Productivity = total units produced divided by the total labor cost plus total

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S09-HW Soln-Ch03 - Chapter 3 Measuring Performance in...

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