xavierfox5210 xavierfox5210

20-12-2022
Mathematics

Answered

the cooking times for all food orders at a fast-food restaurant during the lunch hour are normally distributed with a mean of 7.7 minutes and a standard deviation of 2.1 minutes. find the probability that the mean cooking time for a random sample of 16 such orders at this restaurant is less than 7.0 minutes. first find the z-score.

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