Problem

Research & Development: Industry The following table shows the total s...

Research & Development: Industry The following table shows the total spent on research and development by industry in the United States, billions of dollars, for the period 1995–2009 (t is the year since 1990).

Find the logarithmic regression model of the form S(t) = A ln t + C with coefficients A and C rounded to 2 decimal places. Also obtain a graph showing the data points and the regression curve. In which direction is it more reasonable to extrapolate the model? Why?

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Solutions For Problems in Chapter 2.3

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