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A grocery chain is considering the installation of a set of 4 self-checkout lanes. The new self-checkout lane setup will replace 2 old cashier lanes that were staffed by a cashier and bagger on each lane. One cashier mans all 4 self-checkouts (answering questions, checking for un-scanned items, taking coupons, etc). Checkout on the new lanes takes 2 minutes (customers bag their own orders) while checkout with the old lanes took only 45 seconds. In addition the electricity costs for both setups are $.05 per checkout while bagging (material) costs are $.10 per checkout with the old system and $.15 for the new system. The new lanes also require $100 in capital costs. Assume that the new lanes ar always in use for 8 hours per day (1 shift) and that a worker makes $10.00/hour. What is the multifactor productivity for each system?
Assume that as a result of HR planning, a mental hospital identifies a shortage of therapists but a surplus of case workers. Discuss the actions that you would take to address the
What do you give on the third wedding anniversary?
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Consider the LP z¤ = max x1 + x2 + 2x3 s.t. x1 + 5x2 + 4x3 • 60 2x1 + 3x2 + 2x3 • 90 xi ¸ 0 8 i = 1; :::; 3: (a) Use the simplex method and follow the smallest index rule to f
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