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Unoccupied Seats on Flights

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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).
-What would be the decision for testing H0: μ\mu = 9 versus Ha: μ\mu\neq 9 at the 1% significance level?

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