The general manager of a chain of furniture stores believes that experience is the most important factor in determining the level of success of a salesperson. To examine this belief she records last month's sales (in $13005) and the years of experience of 10 randomly selected salespeople. These data are listed below. Years of Experience 0 2 10 3 8 5 12 T 20 15 Sales 7 9 20 15 18 14 20 1? 30 25 a. First gure out ...... (451" 'x' and 'y ' mentioned then don 'i have to warm 3: is independent andy is dependent) Independent Variable = Dependent Variable = 1). Determine the least squares regression line. (3. Interpret the value of the slope of the regression line