An airline claims that the mean flight time between City X and City Y is 38 minutes. After taking many flights, a local business group believes that the claim is unrealistic and that the actual mean flight time is greater than 38 minutes. If the group conducts a study to investigate its belief, which of the following hypotheses should be tested?

The group is making a claim about the actual population, so we use \(\mu\) (population mean) rather than \(\bar{x}\) (sample mean).

The claim is that the time is greater than 38, so that will correspond to the alternative hypothesis.