Question $1(2$ points$)$

In the Fast Shop Market example $-$ slides #$7-19,=24$ customers per hour arrive at checkout counter $=30$ customers per hour can be checked out. A manager wishes to test several alternatives for reducing customer waiting time. One alternative is to add a new checkout counter. The new counter costs $$6,000.$ An additional cashier costs $$100$ a week. Each minute of reduced customer waiting time is worth $$75$ per week. With this alternative, the new customer arrival rate is customers per hour.

$15$

$48$

$12$

$24$

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