(Solved) : The Average Cost Per Night Of A Hotel Room In New York City Is 278 Smartmoney Ma . . .
The average cost per night of a hotel room in New York City is $278 (SmartMoney, March 2009). Assume this estimate is based on a sample of 45 hotels and that the sample standard deviation is $55.
a. With 95% confidence, what is the margin of error? Round your answer to the nearest dollar.
b.What is the 95% confidence interval estimate of the population mean? Round your answers to the nearest dollar.
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