RST Airlines operates call centers for customer service in four locations: Minneapolis, Phoenix, Boise, and Singapore. Although all four call centers can handle any inquiries, calls from elite customers are generally routed to the Boise center, and international calls as well as domestic calls between midnight and 6 a.m. (Central U.S. Time) are routed to Singapore. The following information provides the call center representative-hours worked and the number of calls handled for the most recent period:

Required

a. Compute the partial productivity measures for representatives for the four locations.

b. Comment on the results. Are there factors other than efficiency that might affect the results?

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Representative-hours. Calls handled..... Minneapolis 8,430 60,696 Phoenix 10,200 61,710 Boise Singapore 7,220 14,300 30,324 73,216