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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

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.

Apr 03 2020 View more View Less

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