Question

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?


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  • CreatedJuly 29, 2015
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