Mathematics, 10.05.2021 23:00 bobbyhsu3751

At the check-in counter of a hotel, the management likes to have a mean target customer processing time of 5.5 minutes with /- 1.5 minutes tolerance. Data were collected and analyzed. It is found it is actually taking 5 minutes on an average per customer. The standard deviation of customer processing time is 1.5 minute. What in the chance that processing time would be less than 3.5 minutes

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