After completing exercise 31, use the same data and your regression results to test for autocorrelation with

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After completing exercise 31, use the same data and your regression results to test for autocorrelation with the Durbin-Watson statistic by completing the following items.

Period Sales Period Sales 1 988 10 604 2 990 11 670 859 12 703 4 781 13 550 691 14 427 6. 776 15 493 7 677 16 524 8. 690 17 563 9. 605 18 471

a. Plot the residuals associated with the trend model for this data.

b. T est for autocorrelation using the .05 significance level.

c. R eport and interpret your result.

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Statistical Techniques In Business And Economics

ISBN: 9781260239478

18th Edition

Authors: Douglas Lind, William Marchal, Samuel Wathen

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