Mathematics, 21.04.2021 01:00 alex34403

The manager of a fast-food restaurant determines that the average time that her customers wait for service is 3.5 minutes. The manager wants to advertise that anybody who isn't served within a certain number of minutes gets a free hamburger. But she doesn't want to give away free hamburgers to more than 1% of her customers. What number of minutes should the advertisement use

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The manager of a fast-food restaurant determines that the average time that her customers wait for s...