Question: A random sample of 48 flights at LA International Airport was taken (all flights were from the same airline, scheduled for the same cross-country flight to Boston's Logan Airport). Every one of the sampled flights was delayed for takeoff. The collected data was used to test whether the mean delay time was less than 12 minutes and the sample standard deviation was $30.8$ minutes.

1. What hypotheses should be tested?
2. Should the 1-Sample \(t\) or the 1-Sample \(Z\) procedure be used? Why?
3. The p-value for the test was 0.3687. What decision should be made about the null hypothesis? What does this mean we can conclude about the true mean delay time?

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