An electronic company is interested in peak hour electricity demand (in kilowatts) as a function of total monthly energy usage (in kilowatt hours). This is important for planning purposes because the generating system must be large enough to meet the maximum demand imposed by customers. Data for 30 residential customers for a given month are shown in the table :a. Write the regression model.b. Using the equation in (a) predict the peak hour demand of electricity of at customer with a total monthly energy usage of 9.56 (y).

Customer X Customer x V Customer V 679 0.79 11 1818 5.84 21 540 0.56 292 0.44 12 1700 5.21 22 874 1.56 1012 0.56 13 747 3.25 23 1543 5.28 493 0.79 14 2030 4.43 24 1029 0.64 5 582 2.70 15 1643 3.16 25 710 4.00 1156 3.64 16 414 0.50 26 1434 0.31 997 4.73 17 354 0.17 27 837 4.20 8 2189 9.50 18 1276 1.88 28 1748 4.88 1097 5.34 19 745 0.70 29 1381 3.48 10 2078 6.85 20 795 3.70 30 1428 7.58