### Variables to develop an estimated regression equation

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##### Reference no: EM131370999

The quarterly sales for Costello Music Company data follow. They are also on the sheet piano sales.

Year Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Yearly Sales

1 4 2 1 5 12

2 6 4 4 14 28

3 10 3 5 16 34

4 12 9 7 22 50

5 18 10 13 35 76

Use the indicator variables to develop an estimated regression equation to account for any seasonal and linear trend effects in the data. What is your forecast for quarter 2 of year 6?

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