the average cost per night of a hotel room in new. The average cost per night of a hotel room in New York City is $273 (SmartMoney, March 2009). Assume this estimate is based on a sample of 45 hotels and that the sample standard deviation is $65.a.: nortel is considering the purchase of a new call. nortel is considering the purchase of a new call routing system the system will cost 50m to purchase an additional 7m to install and will last for 30.