Question: In recent years the average time it takes your audit teams to complete an audit has been 55.8 hours. In monitoring the performance of one of these audit teams recently, you found the average time for a random sample of their audits differed by nearly 6 hours from the company average. If you were to use the sample average in a hypothesis test to determine if this team's average performance is different from the overall company average, what null and alternative hypotheses would you recommend?