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Sales of Volkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years ( see table below ) . Year

Sales of Volkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years(see table below).
Year
Sales
1
2
3
4
5
Part 2
a) Forecasted sales for year 6 using the trend projection(linear regression) method are
613.7 sales (round your response to one decimal place).
Part 3
b) The MAD for a linear regression forecast is
6.2 sales (round your response to one decimal place).
Part 4
c) The MSE for the linear regression forecast is
65.7 sales (round your response to one decimal place)

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