Final answer:
This question discusses conducting a hypothesis test regarding the average number of babies on flights based on a survey. The airline executive believes the average number is six, with a variance of nine at most.
Step-by-step explanation:
In this question, the subject being discussed is hypothesis testing in statistics. The student is asked to conduct a hypothesis test regarding the average number of babies on flights, based on a survey that was conducted. The airline executive believes the average number of babies is six, with a variance of nine at most. The results of the survey are given, and the student is asked to test the executive's belief.