Question: The monthly sales for Apex, Inc., were as follows: Determine forecast for next January with the following methods: a) Naive method b) Four periods weighted moving average with the 0.5 (for the most recent) and 0.4,0.3 and 0.2 for the consecutive months c) Exponential smoothing using an =0.3 and September forecast of 19) d) A linear trend equation (draw graph, add equestion in excel) e) Compare the performance of the two methods (exponential smoothing and weighted moving average) by using the MAPE as the performance Question 2: A project with seven activities has been defined in the following table. Use the information and answer the following questions: a) Draw network diagram. (5 marks) b) Find the expected time (te) for all activities. (fill the table) ( 5 marks) c) Determine all the paths and show the critical path on the network diagram. ( 8 marks) t=64+4,t) CPM does not have slack time. Question 3 A Tim Horton branch wants to set up a line to serve 60 customers per hour. The work elements and their precedence relationships are shown in the following table. a) Braw a precedence diagram.(5 marks) b) What is the theoretical minimum number of stations? (5 marks) c) Balance the line in the minimum number of stations to meet the demand? (10 marks) d) Suppose that a solution requiring five stations is obtained. What is its efficiency? (10 marks)