The number of plumbing repair jobs performed by Auger's Plumbing Service in each of the last nine months is listed below. 
a.Assuming a linear trend function,forecast the number of repair jobs Auger's will perform in December using the least squares method.
b.What is your forecast for December using a three-period weighted moving average with weights of 0.6,0.3,and 0.1? How does it compare with your forecast from part (a)?
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