Question

A tele-marketing company wants to know if sales go up as they call more people per day but spend less time per call. The following is the data from nine randomly selected days. The information is the number of calls the salesperson makes in a day and the total amount of sales (in thousands of dollars) Calls 25 29 33 37 48 67 43 55 Sales 3.7 4.2 5.0 5.3 4.9 5.6 5.9 4.2 4.7 0.05, use a model test to see if a linear relationship exists between the Using alpha number of calls and sales. A positive relationship is anticipated between these two variables. At alpha 0.05, test to see if the evidence supports that anticipated sign. Construct a 98% confidence interval for the population slope coefficient. 52

Answer 1