a. Assuming that the sales data below are representative of sales for previous years, use regression analysis to forecast next year's (Year 7s) sales revenues Year Sales 46.7 59.3 74.2 77.9 85.1 98.0 46.7 2180.89 118.6 3516.19 222.6 5505.64 311.6 6068.41 425.5 7242.01 588.0 9601.00 1713.0 34117.41 16 25 36 6 b. Determine the correlation coefficient and the coefficient of determination for the data and interpret their meanings