Here is a scatterplot for the weekly sales of a brand of frozen pizza (in kilograms) for
Question:
Here is a scatterplot for the weekly sales of a brand of frozen pizza (in kilograms) for every fourth week vs. the unit price of the pizza for a sample of stores:
a) Check the assumptions and conditions for correlation.
b) Compute the correlation between sales and price.
c) Does this graph support the theory that as prices drop, demand for the product will increase?
d) If we assume that the number of kilograms of pizza per box is consistent and we measure sales in the number of pizza boxes sold instead of kilograms, will the correlation change? Explain.
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Related Book For
Business Statistics
ISBN: 9780133899122
3rd Canadian Edition
Authors: Norean D. Sharpe, Richard D. De Veaux, Paul F. Velleman, David Wright
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