An Economist Examines the Relationship Between the Number of Patent

question 99

Essay

An economist examines the relationship between the number of patent applications filed and expenditures in research and development (Ramp;D)for the 50 states and the District of Columbia.She believes that if a state spends more on research and development,then more patents will be filed.She estimates the following model: ,where Patents is the number of patent applications filed and R&D is the state's expenditures on research and development (in $1,000,000s).The regression results are shown in the accompanying table. a.Predict the number of patents filed for a state that spends $5,000,000 on R&D.
b.Interpret the coefficient attached to R&D.
c.Calculate the standard error of the estimate.
d.Interpret the coefficient of determination.

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