Problem

Weekly Sales The average weekly sales for Abercrombie and Fitch between 2004 and 200...

Weekly Sales The average weekly sales for Abercrombie and Fitch between 2004 and 2008 are given below.

a. What behavior suggested by a scatter plot of the data indicates that a quadratic model is appropriate?

b. Align the input so that t = 0 in 2000. Find a quadratic model for the data.

c. Numerically estimate the derivative of the model from part b in 2007 to the nearest hundred dollars.

d. Interpret the answer to part c.

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Solutions For Problems in Chapter 2.4

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