An online clothing retailer keeps track of its customers' purchases. For those customers who signed up for
Question:
The correlation between Total Yearly Purchases and Age is r = 0.037. Summary statistics for the two variables are:
a) What is the linear regression equation for predicting Total Yearly Purchase from Age?
b) Do the assumptions and conditions for regression appear to be met?
c) What is the predicted Total Yearly Purchase for an 18-year-old? For a 50-year-old?
d) What percent of the variability in Total Yearly Purchases is accounted for by this model?
e) Do you think the regression might be a useful one for the company? Explain.
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Related Book For
Stats Data And Models
ISBN: 662
4th Edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock
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