Question: 23. Appendix B Data Set: Home Prices Refer to Data Set 18 in Appendix B and use the selling prices and list prices of homes

23. Appendix B Data Set: Home Prices Refer to Data Set 18 in Appendix B and use the selling prices and list prices of homes sold.

a. Using a 0.05 significance level, test the claim of a realtor that the housing market is so hot that there is no difference between selling prices and list prices.

b. Construct a 95% confidence interval estimate of the mean difference between the selling prices and list prices.

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