The table shows the net profits P (in millions of dollars) for McDonalds from 2004
Chapter 0, Problem 46(choose chapter or problem)
The table shows the net profits P (in millions of dollars) for McDonald’s from 2004 through 2013. (Source: McDonald’s Corp.)
(a) Construct a bar graph for the data. Write a brief statement regarding the profit of McDonald’s over time.
(b) Use the regression feature of a graphing utility to find a linear model for the data and to identify the correlation coefficient. Let t represent the year, with t = 4 corresponding to 2004.
(c) Use the graphing utility to plot the data and graph the model in the same viewing window.
(d) Use the model to predict the profits for McDonald’s in 2015 and 2018.
(e) In your opinion, is the model appropriate for predicting future profits? Explain.
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