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17. IIn the following situation determine whether or not it is safe to use the formula...

17.

IIn the following situation determine whether or not it is safe to use the formula for the confidence interval for the population mean, μ.

In order to estimate μ, the mean weight of a typical passenger + his/her luggage on
 an early morning flight from New York City to Washington DC, an airline company chose a random sample of 64 passengers who took the flight. From past research on similar flights, it is known that weights of passengers + their luggage have a standard deviation σ = 20 pounds.

Can we safely estimate μ with the confidence interval that we developed?

math   Statistics-And-Probability   
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