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OPIM 1010 2010 Spring Extra Study Problems

# Assumethatthecoefficientofvariationof

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Unformatted text preview: r should the new employee assist? Q19 Suppose Alternative II is chosen. What is the new capacity of the process? Q20‐Q24 Newt Philly needs to decide where to get a haircut. He has narrowed the choice down to two local hair salons – Large Hair Salon (LHS) and Small Hair Cutters (SHC). During busy periods, a new customer walks into LHS every 15 minutes (with a standard deviation of 15 minutes). At SHC, a customer walks in every hour (with a standard deviation of 1 hour). LHS has a staff of 4 barbers, while SHC has 1 barber. A typical service time at either salon lasts 30 minutes (with a standard deviation of 30 minutes). Q20 If Newt walks into LHS during a busy period, how long must he wait in line before he can see a barber? (Only include the waiting time, not any service time) Q21 If Newt goes to SHC, how long must he wait in line before his haircut starts? Q22 Assume that it takes Newt 10 minutes to leave work and walk to LHS and 10 minutes to walk back (i.e. each way of the walk takes 10 minut...
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