6-19. Six sites have been identified for a parking lot in downtown Blacksburg. Because the sites are plots of land, their salvage value and investment cost are identical. A 10-year study period has been specified, and the MARR is 18% per year. Which site should be chosen based on the IRR criterion

Customers arrive at rich dunn's styling shop at a rate of 3 per hour, distributed in a poisson fashion. rich can perform an average of 5 haircuts per hour, according to a negative exponential distribution. a) the average number of customers waiting for haircuts= customersb) the average number of customers in the shop= customersc) the average time a customer waits until it is his or her turn= minutesd) the average time a customer spends in the shop= minutese) the percentage of time that rich is busy= percent