A horologist (watchmaker) is typically able to service a mechanical watch in about 120 minutes (exponential distribution

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A Horologist Watchmaker Is Typically Able To Service A Mechanical Watch In About 120 Minutes Exponential Distribution 1 (67.72 KiB) Viewed 8 times

A horologist (watchmaker) is typically able to service a mechanical watch in about 120 minutes (exponential distribution). Assuming an 8 hour work-day, the watchmaker averages 3 customers arriving at his shop every day following a poisson distribution. The watchmaker just purchased a new machine that will polish the dial and crystal reducing his service time by 20 minutes per watch. How much will the line for a watch waiting to be serviced be reduced by the watchmaker using this new machine, assuming no increase in customer demand? 2.25 watches waiting for service O The number waiting to be serviced will be reduced by about 1.2 watches O The number waiting to be serviced will be reduced by about 0.4 watches O The number waiting to be serviced will be reduced by about 1.45 watches