Year Cost/Unit ($) Year Cost/Unit ($) 1 21.20 5 26.80 2 25.90 6 31.00 3 27.10 7 31.90 4 25.90 8 35.20 (a) Choose the correct time series plot. (1) $40.00 (u) 500.00 535.00 SUS 530.00 53000 525.00 $35.00 53000 550.00 8 $15.00 88.00 WE 51000 11000 5500 35.00 50.00 sad 1 1 Year Year (1) SAGO (iv) SADO Year Year - Select your answer - What type of pattern exists in the data? - Select your answer - (b) Use simple linear regression analysis to find the parameters for the line that minimizes MSE for this time series. It required, round your answers for the parameters to four decimal places and your answer for the MSE to two decimal places. Do not round you calculations. y-Intercept, bo Slope, MSE (c) What is the average cost increase that the firm has been realizing per year? If required, round your answer to two decimal places (d) Compute an estimate of the cost/unit for next year. y required, round your answer to two decimal places. Do not round your intermediate calculations US 9:50