You want to study housing costs in the country by sampling recent house sales in various (
Question:
You want to study housing costs in the country by sampling recent house sales in various
( representative) regions. Your goal is to provide a 95% confidence interval estimate of the housing cost. Previous studies suggest that the population standard deviation is about $7,200. What sample size (at a minimum) should be used to ensure that the sample mean is within
a. $500 of the true population mean?
b. $100 of the true population mean?
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Related Book For
Statistical Reasoning For Everyday Life
ISBN: 9780321904645
4th International Edition
Authors: Jeffrey Bennett, William L. Briggs, Mario F. Triola
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