Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,350 per hour and a standard...

Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,350 per hour and a standard deviation of $255.What is the operating cost for the lowest 5 percent of the airplanes? (Round z value to 2 decimal places. Omit the "$" sign in your response.)