The total value of consumer durable goods has grown at an approximately linear rate in recent years. The annual data for the years 2002 through 2008 can be summarized as follows, where x represents the years since 2000 and y the total value of consumer durable goods in trillions of dollars.

a. Find an equation for the least squares line.

b. Use your result from part a to predict the total value of consumer durable goods in the year 2015.

c. If this growth continues linearly, in what year will the total value of consumer durable goods first reach at least 6 trillion dollars?

d. Find and interpret the correlation coefficient.

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n = 7 Συ 28.4269 = Σχ = Σy 35 = 116.3396 Σχ2 Σχν = – 203 147.1399