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1. The general manager of a chain of furniture stores believes that experience is the most important factor in determining the success of a salesperson. To examine this belief he records last month's sales (in $1000s) and the years of experience of 6 randomly selected employees. X Y Experience (years) Sales (in $10009) 1 XV $7 X2 2 9 10 20 3 15 18 14 a) Compute the least squares regression equation (the y-hat line) describing the relationship between| experience and monthly sales. b) Interpret (precisely) the "by" coefficient from your regression? c) Predict the monthly sales for someone with 6 years of experience