The numbers of countries that require picture warnings on cigarette packages are shown in Table 32 for various years.

Let n be the number of countries that require picture warnings on cigarette packages at t years since 2000.
a. Use technology to construct a scatterplot.
b. Describe the four characteristics of the association. Compute and interpret r as part of your analysis.
c. Use technology to graph the model n = 8.59t - 50.58 on the scatterplot. Does the line come close to the data points?
d. What is the n-intercept? What does it mean in this situation?
e. Estimate the number of countries that required picture warnings on cigarette packages in 2013.

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Table 32 Numbers of Countries Requiring Picture Warning on Cigarette Packages Year Number of Countries 18 34 2008 2010 2012 2014 2015 70