4. A company uses an extensive amount of polymer for a coating operation. This material is a major part of the product cost Solve the following questions: (a) Determine a 3-year moving average for the information given below. year 2 3 and 4 (6) What is the estimated cost for year 11 based on the moving average data? (use regression method to estimate) () Also, using an exponential smoothing function, calculate the smoothed data of each year for a = 0.33 (d) What is the expected cost for year 11 based on the smoothed data (Hint Using regression method to estimate the cost for year 11 means you need to find out the a and bin y=atbx equation. Then, replace the x by 11 to calculate the value of y) Year 0 1 2 3 4 5 Unit Price $60.0 $63.2 $64.2 $64.3 $64.4 $65.0 Year 6 7 8 9 10 TO Unit Price $65.2 $65.8 $66.4 $675 $70.0