STL Apparel wants to forecast sales for three of its main-selling clothing items: T-Shirts, Sweatpants, and Hoodies. An excel file contains data for this problem: STLApparel Data . A quarterly demand history for each of the three item categories is provided in the attached. You have been hired to help them forecast their demand for quarter 21. According to the rubric below, the report should include four sections: 1. Introduction: Provide background and motivation about the problem we are analyzing. Why should Management at STL Apparel care about these analyses? 3. Methods: Recommend the most appropriate adaptive forecasting method(s) and best decision parameter values for the method(s) for the three products. [ l)