Mathematics, 22.09.2021 04:40 HOTaco2181
20 points will give Brainliest! URGENT From long experience, it is known that the time it takes to do an oil change and lubrication job on a vehicle has a normal distribution with a mean of 17.8 minutes and a standard deviation of 5.2 minutes. An auto service shop will give a free lube and oil change service to any customer who must wait beyond the guaranteed time to complete the work. If the shop does not want to give more than 1% of its customers a free lube and oil change service, how long should the guarantee be? Round approximately to the minute.
Answers: 1
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Pls! does anybody know a shortcut for answering these types of questions in the future?
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20 points will give Brainliest! URGENT
From long experience, it is known that the time it takes to...
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