It is reported in USA Today that the average flight cost nationwide is $474.08.

Question

It is reported in USA Today that the average flight cost nationwide is $474.08. You have never paid close to that amount and you want to perform a hypothesis test that the true average is actually greater than $474.08. The hypotheses for this situation are as follows: Null Hypothesis: 474.08, Alternative Hypothesis: > 474.08. If the true average flight cost nationwide is $207.5 and the null hypothesis is not rejected, did a type I, type II, or no error occur?

Question 5 options:

1) Type I Error has occured. 2) We do not know the p-value, so we cannot determine if an error has occured. 3) We do not know the degrees of freedom, so we cannot determine if an error has occured. 4) No error has occured. 5) Type II Error has occured

Explanation / Answer

The true average flight cost nationwide is $207.5

We are accepting the Null hypothesis.

i.e,, Null Hypothesis: 474.08, is accepted.

Hence average flight cost nationwide is $207.5 is less than population Mean.

hence there is no error

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