A Random Sample of 16 Roundtrip Flights Between Philadelphia and Dallas

question 102

Multiple Choice

A random sample of 16 roundtrip flights between Philadelphia and Dallas has an average airfare of $422.10 with a sample standard deviation of $56.30. The approximate standard error of the mean for this sample is --------.

• A)$20.32
• B)$24.19
• C)$10.11
• D)$14.08

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