Question: 7 . You need to forecast demand for years 4 , 5 , and 6 . The mean of x ( x bar ) is

7. You need to forecast demand for years 4,5, and 6. The mean of x (x bar) is 8 the mean of y (y bar) is 197.92, and b is 21.08. Calculate a and then create a forecast for years 4,5, and 6.

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