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The table below shows the growth of new car dealers over a 17-year period. Use the data to predict the number of new car dealers

The table below shows the growth of new car dealers over a 17-year period. Use the data to predict the number of new car dealers on the basis of the amount spent on used vehicles and parts, total excluding vehicles and parts, and gasoline stations. Discuss the results, highlighting both the significant and nonsignificant predictors.

Year New Car Dealers Used Vehicles and Parts Total Excluding Used Vehicles and Parts Gas Stations

1 31,817 6,853 146,390 17,139

2 32,737 6,931 149,995 17,009

3 35,600 7,457 156,278 17,202

4 41,166 8,492 164,334 17,251

5 44,037 8,810 168,231 17,872

6 46,821 9,444 172,174 20,105

7 52,879 10,722 183,217 20,380

8 54,308 11,038 191,149 19,607

9 58,721 11,393 201,418 21,535

10 61,031 12,872 213,935 26,676

11 63,518 14,009 222,920 26,986

12 69,161 14,303 236,061 28,138

13 68,184 14,394 248,566 29,951

14 68,141 14,559 264,021 33,364

15 71,516 15,301 279,354 38,357

16 74,531 17,286 297,667 41,753

17 76,884 18,674 316,479 46,388

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