Use the Following Information for Questions:
Unoccupied Seats on Flights

Short Answer

Use the following information for questions:
Unoccupied seats on flights cause airlines to lose revenue. A large airline wanted to estimate its average number of unoccupied seats per flight. Based on a random sample of flights, the 95% confidence interval for mean number of unoccupied seats per flight was given as: (7.5, 9.5).
-Based on the 95% confidence interval, what would be the decision for testing H₀: $\mu$ = 9 versus H_a: $\mu$ $\neq$ 9 at the 5% significance level?