# Question: Suppose the Internet retailer Buy com would like to investigate the

Suppose the Internet retailer Buy.com would like to investigate the linear relationship between the amount of time in minutes a purchaser spends on its Web site and the amount of money he or she spends on an order. The following table shows the data from a random sample of 12 customers and can also be found in the Excel file Buy. com. xlsx.

a. Construct a scatter plot for these data using Excel.

b. Using α = 0.05, determine if the slope for the regression equation is statistically significant.

c. What conclusions can be drawn about a purchaser’s time on the Web site and his or her order size?

a. Construct a scatter plot for these data using Excel.

b. Using α = 0.05, determine if the slope for the regression equation is statistically significant.

c. What conclusions can be drawn about a purchaser’s time on the Web site and his or her order size?

## Answer to relevant Questions

Using the data in Problem 14.40, construct a 95% confidence interval for the regression slope. In Problem Answer the following questions using the data from Problem 14.42: a. Using α = 0.05, test for the significance of the regression slope. b. Construct a 95% confidence interval for the population slope. In Problem Answer the following questions using the data from Problem 14.50: a. Using α = 0.05, test for the significance of the regression slope. b. Construct a 95% confidence interval for the population slope. c. What conclusions ...Using the data from Problem 14.5 and α = 0.02, test if the population correlation coefficient between a person’s age and credit score is different than zero. What conclusions can you draw? In Problem Best Buy would like to investigate the linear relationship between the selling price of a Canon PowerShot digital camera and the demand for it. The following table shows the weekly demand for the camera in one particular ...Post your question