Question: Using the data in the Excel file Airport Service Times, determine if the airline can claim that its average service time is less than 2.5

Using the data in the Excel file Airport Service Times, determine if the airline can claim that its average service time is less than 2.5 minutes.

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Service Times at an Airport Ticketing Counter Times sec 26 H0 mean 150 seconds 358 H1 mean 150 seconds 218 71 Xbar 12628 190 SD 10518 36 45 Mean 15000 ... View full answer

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