Below are percentages for annual sales growth and net sales attributed to loyalty card usage at 74
Question:
(a) Make a scatter plot.
(b) Find the correlation coefficient and interpret it.
(c) Test the correlation coefficient for significance, clearly stating the degrees of freedom.
(d) Does it appear that loyalty card usage is associated with increased sales growth?
Transcribed Image Text:
Annual Sales Growth (%) and Loyalty Card Usage (% of Net Sales) (n 74 restaurants) Store Growth% Loyalty% 8.3 -4.0 -3.9 2.1 2.5 1.7 72 73 74 20.8 25.5 28.8 0.6
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Related Book For
Applied Statistics In Business And Economics
ISBN: 9780073521480
4th Edition
Authors: David Doane, Lori Seward
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