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7. A real estate agent compares the selling prices of homes in two municipalities in southwestern Pennsylvania to see if there is a difference. The
7. A real estate agent compares the selling prices of homes in two municipalities in southwestern Pennsylvania to see if there is a difference. The results of the study are shown. Is there enough evidence to reject the claim that the average cost of a home in both locations is the same? Use 0 =0.01. Scott Ligonier X, = $93,430* X, = $98,043* 1 = $5602 02 = $4731 n1 = 35 12 = 40 *Based on information from RealSTATs.8. A study is conducted to determine the relationship between a driver's age and the number of accidents he or she has over a 1-year period. The data are shown here. Driver's age x 16 24 18 17 23 27 32 No. of accidents y 3 2 5 2 0 1 a. Draw the scatter plot. b. Compute the value of the correlation coefficient. c. Test the significance of the correlation coefficient at o = 0.01. d. Determine the regression line equation. e. Predict the number of accidents of a driver who is 28
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