The following data were collected on the study of the relationship between a company’s retail sales and advertising dollars: Retail Sales ($) Advertising ($) 31,457 16,136 37,031 17,809 40,543 19,848 43,375 23,770 47,594 25,075 51,160 27,911 52,807 32,947 55,796 34,906 57,885 35,367 59,416 38,880 a. Obtain a linear regression line for the data. (Round your answer to 2 decimal places, the tolerance is +/-0.01.) b. Compute a correlation coefficient and determine the strength of the linear relationship. (Round your answer to 2 decimal places, the tolerance is +/-0.01.) c. Using the linear regression equation, develop a forecast of retail sales for advertising dollars of $42,626. (Round your answer to 2 decimal places, the tolerance is +/-0.01. Do not round intermediate results used to achieve this answer.) .