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A real estate agency wants to compare the appraised values of
single-family homes in two Black...
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A real estate agency wants to compare the appraised values ofsingle-family homes in two Black Hawks County communities. A randomsample of 60 listings in Cedar Falls and 95 listings in Waterlooyields 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 meanappraised value of all single-family homes for Waterloo? _____
A 95% confidence interval for the difference in mean appraisedvalue of all single-family homes between Cedar Falls and Waterloois ___________________
A 99% confidence interval for the mean appraised value of allsingle-family homes for Cedar Falls is _______________
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