Suppose the dealer incentive per vehicle for Honda’s Acura b…

Suppose the dealer incentive per vehicle for Honda’s Acura brand in 2012 is thought to be bell-shaped and symmetrical with a mean of $2,500 and a standard deviation of $300. Based on this information, what interval of dealer incentives would we expect approximately 99.7% of vehicles to fall within? Write you answer like (Lower limit, upper limit)