The file Case-1- data contains data for problems 1 and 2.

Problem 1: Use the Problem-1 data to answer the following questions (15 points)

1. What is the forecast for January of the year 2020 using Holts method ? (4 points)
2. Use Solver to estimate the optimal value of smoothing constants () that minimize MSE and evaluate the MSE based on the optimal value of.

MSE = (4 points)

1. What is the forecast for June of the year 2020 using Holts methodbased on the optimal value? (4 points)
2. Comment on the appropriateness of this forecasting method (Explain). (2 points)

Question 2: Use the Problem-2 data to answer the following questions (20 points).

1. What is the forecast for quarter 1 of the year 2018? (4 points)
2. What is the forecast from quarter 1 to quarter 4 of the year 2023 (16 points)

\begin{tabular}{|r|r|r|} \hline 1 & Monthly sales data \\ \hline 3 & Month & Demand \\ \hline 4 & & \\ \hline 5 & Jan-20 & 2901 \\ \hline 6 & Feb-20 & 2932 \\ \hline 7 & Mar-20 & 2958 \\ \hline 8 & Apr-20 & 2974 \\ \hline 9 & May-20 & 3008 \\ \hline 10 & Jun-20 & 3027 \\ \hline 11 & Jul-20 & 3044 \\ \hline 12 & Aug-20 & 3071 \\ \hline 13 & Sep-20 & 3098 \\ \hline 14 & Oct-20 & 3108 \\ \hline 15 & Nov-20 & 3134 \\ \hline 16 & Dec-20 & 3168 \\ \hline 17 & Jan-21 & 3186 \\ \hline 18 & Feb-21 & 3221 \\ \hline 19 & Mar-21 & 3256 \\ \hline 20 & Apr-21 & 3295 \\ \hline 21 & May-21 & 3322 \\ \hline 22 & Jun-21 & 3343 \\ \hline 23 & Jul-21 & 3368 \\ \hline 24 & Aug-21 & 3407 \\ \hline 25 & Sep-21 & 3426 \\ \hline 26 & Oct-21 & 3455 \\ \hline 27 & Nov-21 & 3483 \\ \hline 28 & Dec-21 & 3509 \\ \hline 29 & Jan-22 & 3538 \\ \hline 30 & Feb-22 & 3582 \\ \hline 31 & Mar-22 & 3600 \\ \hline 32 & Apr-22 & 3652 \\ \hline 33 & May-22 & 3686 \\ \hline 35 & Jun-22 & 3722 \\ \hline Jul-22 & 3747 \\ \hline 3 Sep-22 & 3811 \\ \hline \end{tabular} \begin{tabular}{|r|r|r|} \hline 35 & Jul-22 & 3/47 \\ \hline 36 & Aug-22 & 3770 \\ \hline 38 & Sep-22 & 3811 \\ \hline 39 & Oct-22 & 3828 \\ \hline 40 & Dev-22 & 3862 \\ \hline 41 & Jan-23 & 3896 \\ \hline 42 & Feb-23 & \\ \hline 43 & Mar-23 & \\ \hline 44 & Apr-23 & \\ \hline 45 & May-23 & \\ \hline 46 & Jun-23 \\ \hline 47 & Jul-23 \\ \hline 48 & Aug-23 \\ \hline 49 & Sep-23 \\ \hline 50 & Oct-23 \\ \hline 51 & Nov-23 \\ \hline 52 & Dec-23 & \\ \hline \end{tabular} \begin{tabular}{|r|r|r|} \hline 1 & Monthly sales data \\ \hline 3 & Month & Demand \\ \hline 4 & & \\ \hline 5 & Jan-20 & 2901 \\ \hline 6 & Feb-20 & 2932 \\ \hline 7 & Mar-20 & 2958 \\ \hline 8 & Apr-20 & 2974 \\ \hline 9 & May-20 & 3008 \\ \hline 10 & Jun-20 & 3027 \\ \hline 11 & Jul-20 & 3044 \\ \hline 12 & Aug-20 & 3071 \\ \hline 13 & Sep-20 & 3098 \\ \hline 14 & Oct-20 & 3108 \\ \hline 15 & Nov-20 & 3134 \\ \hline 16 & Dec-20 & 3168 \\ \hline 17 & Jan-21 & 3186 \\ \hline 18 & Feb-21 & 3221 \\ \hline 19 & Mar-21 & 3256 \\ \hline 20 & Apr-21 & 3295 \\ \hline 21 & May-21 & 3322 \\ \hline 22 & Jun-21 & 3343 \\ \hline 23 & Jul-21 & 3368 \\ \hline 24 & Aug-21 & 3407 \\ \hline 25 & Sep-21 & 3426 \\ \hline 26 & Oct-21 & 3455 \\ \hline 27 & Nov-21 & 3483 \\ \hline 28 & Dec-21 & 3509 \\ \hline 29 & Jan-22 & 3538 \\ \hline 30 & Feb-22 & 3582 \\ \hline 31 & Mar-22 & 3600 \\ \hline 32 & Apr-22 & 3652 \\ \hline 33 & May-22 & 3686 \\ \hline 35 & Jun-22 & 3722 \\ \hline Jul-22 & 3747 \\ \hline 3 Sep-22 & 3811 \\ \hline \end{tabular} \begin{tabular}{|r|r|r|} \hline 35 & Jul-22 & 3/47 \\ \hline 36 & Aug-22 & 3770 \\ \hline 38 & Sep-22 & 3811 \\ \hline 39 & Oct-22 & 3828 \\ \hline 40 & Dev-22 & 3862 \\ \hline 41 & Jan-23 & 3896 \\ \hline 42 & Feb-23 & \\ \hline 43 & Mar-23 & \\ \hline 44 & Apr-23 & \\ \hline 45 & May-23 & \\ \hline 46 & Jun-23 \\ \hline 47 & Jul-23 \\ \hline 48 & Aug-23 \\ \hline 49 & Sep-23 \\ \hline 50 & Oct-23 \\ \hline 51 & Nov-23 \\ \hline 52 & Dec-23 & \\ \hline \end{tabular}