Montht January 1 February | 2 March 3 April 4 May 5 June 6 July 7 Demand 1200 1000 1100 1250 1300 980 1010 a. What is the forecast for May based on a nae approach? (5 pt) b. What is the forecast for June based on a 2-month moving average approach? (10 pt) c. What is the forecast for July based on a weighted moving average applied to the following past demand data and using the weights: 3, 2, 1 (largest weight is for most recent data)? (10 pt) d. Which line in the figure below is the prediction based on a nale approach? (5 pt) Demand Prediction 1400 1200 1100 1000 900 800 - 2 4 6 12 14 16 18 8 10 Period (t)