Question: I need a professional answer for question a and question b (Mean absolute deviation) MAD (Chapter 4) Question 10, Problem 4.... Part 1 of 3

I need a professional answer for question a and

I need a professional answer for question a and question b (Mean absolute deviation) MAD

(Chapter 4) Question 10, Problem 4.... Part 1 of 3 HW Score: 16.42%, 6.57 of 40 points O Points: 0 of 3 Sales of Volkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years (see table below) Year Sales 450 502 1 2 3 4 5 518 575 595 a) Forecasted sales for year 6 using the trend projection (linear regression) method are sales (round your response to one decimal place)

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