A bank official wants to assess if the average delays for two airlines are different. Let LaTeX: \mu_1μ 1 = average delay for Airline 1 and LaTeX: \mu_2μ 2 = average delay for Airline 2. A random sample of 10 flights for Airline 1 shows an average of 6 minutes delay with a standard deviation of 5 minutes. A random sample of 10 flights for Airline 2 shows an average of 12 minutes delay with a standard deviation of 5 minutes. Assume delay times are normally distributed. What are the appropriate null and alternative hypotheses?

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