A random sample of 9 recently sold homes in a local marketcollects the list price and selling price for each house. Theprices are listed below in thousands of dollars. A group ofrealtors wants to test the claim that houses are selling for morethan the list price.
| List Price | 490 | 275 | 289 | 349 | 460 | 499 | 325 | 380 | 299 |
| Sell Price | 485 | 275 | 280 | 360 | 465 | 490 | 340 | 395 | 315 |
(a) Find d¯, the mean of the differences.
(b) State the claim, the negation of the claim, H0,and H1 (using equations and the parameter μd).
(c) Find the p-value. Use a significance level of α=.05 to testthe claim. State your conclusion about H0.
(d) State your conclusion about the original claim.
