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300 deliveries 1. If you are unable to change the standard deviation of the delivery time, what...

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General Management

300 deliveries

1. If you are unable to change the standard deviation of thedelivery time, what should be the average delivery time so that nomore than 5% of the deliveries are late (late = takes more than 9hours)

Current average delivery time = 8 hours, standard deviation ofdelivery time = 1 hour

Target average delivery time: _________ hours (round your answerto 2 decimal points)

2. If you are unable to change the average delivery time, whatshould be the standard deviation of the delivery process so that nomore than 5% of the deliveries are late (late = takes more than 9hours)

Current average delivery time = 8 hours, standard deviation ofdelivery time = 1 hour

Target standard deviation of delivery time: _________ hours(round your answer to 2 decimal points)

Answer & Explanation Solved by verified expert
4.2 Ratings (819 Votes)
Answer to first question No more than 5 of the deliveries are late and target delivery time being 9 hours means probability that delivery time being 9 hours    See Answer
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