\begin{tabular}{|c|c|c|c|c|c|} \hline Year & Quarter & Cost/Unit (\$) & Year & Quarter & Cost/Unit (\$) \\ \hline \multirow[t]{4}{*}{1} & 1 & 19.74 & 5 & 1 & 29.25 \\ \hline & 2 & 17.00 & & 2 & 32.48 \\ \hline & 3 & 13.12 & & 3 & 28.59 \\ \hline & 4 & 17.82 & & 4 & 25.02 \\ \hline \multirow[t]{4}{*}{2} & 1 & 20.06 & 6 & 1 & 25.52 \\ \hline & 2 & 25.62 & & 2 & 36.03 \\ \hline & 3 & 22.81 & & 3 & 27.55 \\ \hline & 4 & 29.61 & & 4 & 27.61 \\ \hline \multirow[t]{4}{*}{3} & 1 & 24.27 & 7 & 1 & 28.21 \\ \hline & 2 & 20.34 & & 2 & 28.29 \\ \hline & 3 & 26.16 & & 3 & 32.47 \\ \hline & 4 & 25.45 & & 4 & 28.56 \\ \hline \multirow[t]{4}{*}{4} & 1 & 20.67 & 8 & 1 & 38.17 \\ \hline & 2 & 28.75 & & 2 & 28.82 \\ \hline & 3 & 32.26 & & 3 & 37.27 \\ \hline & 4 & 25.70 & & 4 & 37.91 \\ \hline \end{tabular}
(b) Use simple linear regression analysis to find the parameters for the line that minimizes MSE for this time series. If required, round your answers for the parameters to four decimal olaces and your answer for the MSE to three decimal places. Do not round your intermediate calculations. Yintercept, b0= slope, b1= MSE - (c) What is the average cost increase that the firm has been realixing per year? If required, round your answer to two decimat places. (d) Compute an estimate of the cost/unit for next year. If required, round vour aniwer to two dedinal places. Do not round your intermediate calculations.