QUESTION 1 25 MARKS The Jamaica Public Service (JPS) conducted a study of the demand for electric power over the past 7' years in megawatts as shown in the printout below. YEAR # ELECTRIC POWER DEMAND {Megawatts} I "M 2 1'9 3 3f! 4 5m 5 H15 6 I42 3" l 22 USE EQUATIONS above to answer the following question. a) Develop the least square estimated regression equation 8 marks b) Describe the relationship between the variables 5 marks c) Is this model a good predictor. Why '? 7marks d) Based on the model developed in a) above what can be said about the annual demand for electricity 5 marks