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After a repeated observation, it has been determined that the waiting time at the drive through...

After a repeated observation, it has been determined that the waiting time at the drive through window of a local bank is skewed left, with a mean of 3.5 minutes and a standard deviation of 1.9 minutes. a random sample of 100 customers is to be taken. What is the probability that the mean of the sample will exceed 4 minutes? show calculation

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Answer #1

Answer: use sd/sqrt(n) Date: ---14/02/2019 the answer is 0.0042

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