Can company claim that they are faster than average utility

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Nationwide, the average waiting time until a electric utility customer service representative answers a call is 250 seconds per call. The Gigantic Kilowatt Energy Company took a sample of 45 calls and found that, on the average, they answered in 230 seconds per call with a standard deviation of $40. Can the company claim that they are faster than the average utility?

Reference no: EM13136753

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