The percentages of Americans who think they will live comfortably when they retire are shown in Table 25 for various years.

Let p be the percentage of Americans at t years since 2000 who think they will live comfortably when they retire.
a. Construct a scatterplot.
b. Describe the four characteristics of the association. Compute and interpret r as part of your analysis.
c. Graph the model p = -2.11t + 64.47 on the scatterplot. Does it come close to the data points?
d. What is the p-intercept? What does it mean in this situation? Do you have much faith in your result? Explain.
e. In which years did more than 41% of Americans think they will live comfortably when they retire?

Transcribed Image Text:

Table 25 Percentages of Americans Who Think They Will Live Comfortably when They Retire Year Percent 2002 2004 2006 2008 2010 2012 59 59 50 46 46 38