Question 4 (30 points) A company has observed that the annual demands of a product can be separated as four seasons (i.e., 4 seasons per year). They have corrected the demands for 10 seasons of three years as shown in the below table. But they do not have the demand of the last two seasons of Year 3, which is to be forecasted. 1) Use static method to make the forecast for the coming 4 seasons. In details: b) Calculate the final seasonal factors: 3 c) Make the forecast for coming four seasons: 2) Use the Moving Average method with N=4 to forecast the coming 4 periods as shown in the table in part c above. 3) Which method you think performs betrer on this data set? Explain why