MBAd 6221 Judgment, Uncertainty, & Decisions Assignment Student ID: G You wish to be able to predict sales from advertising dollars. The following table lists monthly advertising expenditures and sales for each month last year by a retail electronics chain: Month January February March April May June July August September October November December Advertising $ (1000s) 5.8 6.2 6.3 6.6 6.4 5.6 5.8 6.0 6.3 6.5 6.3 5.9 Sales $(1000s) 109 116 117 119 116 107 111 114 117 118 117 109 1. What are the least squares regression coefficients of the intercept and slope ? 2. Please interpret the meaning of the slope: 3. Please interpret the meaning of the intercept: 4. What is the expected monthly sales (in thousands of dollars) in a month with $6,100 of advertising? 5. What is the expected error in prediction (in hundreds of dollars) of sales in a month with $6,100 of advertising? 6. Please identify the coefficient of determination, , and interpret its meaning: