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In a large lb department store the average waiting time at

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In a large LB department store the average waiting time at the toys checkout counter is 5 minutes with a standard deviation of 2 minutes. Assume that the distribution of waiting time is normal. Compute boundaries for the middle 75.4% of the customers waiting time at the at the toys checkout counter.

How do you compute boundaries for normal distribution? A step by step answer would be much appreciated

Reference no: EM13644263

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