A A real estate agency wants to compare the appraised values of single-family homes in two...

A real estate agency wants to compare the appraised values of single-family homes in two Black Hawks County communities. A random sample of 60 listings in Cedar Falls and 95 listings in Waterloo yields the following results (in thousands of dollars):

	Appraised value	Standard deviation
*Cedar Falls*	154.12	27.5
*Waterloo*	138.74	21.8

What is the 95% margin of error when estimating the mean appraised value of all single-family homes for Waterloo? _____

A 95% confidence interval for the difference in mean appraised value of all single-family homes between Cedar Falls and Waterloo is ___________________

A 99% confidence interval for the mean appraised value of all single-family homes for Cedar Falls is _______________

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milcah answered 3 months ago

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