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At a particular restaurant the mean time for a customer to wait for a table is 16.3 minutes with standard deviation 5.8 minutes a) if

At a particular restaurant the mean time for a customer to wait for a table is 16.3 minutes with standard deviation 5.8 minutes

a) if a sample of 45 customers is considered what is the probability that their mean wait time x is between 15 and 18 minutes?

b) Why can we the CLT for this question?

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