In the January 2004 issue of Consumer Reports an article
In the January 2004 issue of Consumer Reports, an article titled “Cut the Fat”described some of the possible problems in the diets of the U. S. public. The following table gives data on the increase in pounds of added sugar produced per person. Construct a time-series plot to display the increase in sugar production.
a. Describe the trend in sugar production over the 30 years.
b. Compute the correlation coefficient between calorie intake (using the data in Exercise 3.67) and sugar production. Is there strong evidence that the increase in sugar production is causing the increased calorie intake by the U. S. public?
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