Question 3: Problem solving ( 8 Marks) A restaurant chain owner would like to analyze the demand in his different branches in order to manage his budget better. His supply chain manager proposes to him to apply the linear regression as a forecasting method to control better the monthly purchases of the cheese and reduce the waste. The supply chain manager did extract the history of consumption of cheese by Kilograms from the information system, they are represented in the following table: x, the Period y, the demand 2 3 4 5 6 7 8 36 38 39 40 36 45 45 40 1. Using the linear regression method calculate the forecast for the period number 9. Show the steps of you work. (6 Marks) 2. Plot the graphic representation of the actual demand and the liner regression. (2 Marks)