1. A small dealership leased 21 outbacks on 2-year leases. When the cars were returned at the end of the lease, the mileage was recorded [mileage.txt]. Is the dealer's mean significantly greater than the national average for 2-year leases, which is 30,000? Which of the following is the appropriatehypothesis to test?
2. H₀:30,000
3. H₁:>30,000
4. H₀:30,000
5. H₁:<30,000
6. H₀:=30,000
7. H₁:30,000
8. None of the above