Question: NOTE: SHOW FORMULA/SOLUTION IN EXCEL 5. Consider the table below: Period January-June 1992 July-December 1992 January-June 1993 July-December 1993 January-June 1994 July-December 1994 January-June 1995

NOTE: SHOW FORMULA/SOLUTION IN EXCEL

NOTE: SHOW FORMULA/SOLUTION IN EXCEL 5. Consider

5. Consider the table below: Period January-June 1992 July-December 1992 January-June 1993 July-December 1993 January-June 1994 July-December 1994 January-June 1995 July-December 1995 January-June 1996 July-December 1996 Sales (units) 4,075 8,239 3,284 6,194 2,582 5,183 1,968 4,023 1,798 3,522 a. Fit a simple linear regression to this data. What is your forecast for the January-June 1997 period? b. Now divide the data into two sets: the first half of the year, and the second half of the year. Perform a simple regression on the data for sales in the first half-year. What is your forecast for the January-June 1997 period? Do you think this answer is more likely to be accurate than the answer to part (a)? Why

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