The waiting time on the cashiers line at the school cafeteria is exponentially distributed with mean 2
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The waiting time on the cashier’s line at the school cafeteria is exponentially distributed with mean 2 minutes. Use the central limit theorem to find the approximate probability hat the average waiting time is more than 2.5 minutes for a group of 20 people. Use R and compare with the exact probability.
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Let X W 1 W 20 20 be the average waiting time Then EX 2 ...View the full answer
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