An airline claims that its average taxi time is 15 minutes, and the standard deviation is 1.4 minutes. The taxi time has a bell-shaped distribution. On a flight with this airline, you observe that the taxi time is 18 minutes. Calculate the z-score for your flight's taxi time. Round the final answer to 2 decimal places.
Added by Sarah C.
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- Mean (μ) = 15 minutes - Standard deviation (σ) = 1.4 minutes Show more…
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