Is the coefficient statistically significant

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Question: a. Run a regression of Growth on TradeShare, YearsSchool, Rev_Coups, Assassinations, and RGDP60. Construct a 95% confidence interval for the coefficient on TradeShare. Is the coefficient statistically significant at the 5% level?

b. Test whether, taken as a group, YearsSchool, Rev_Coups, Assassinations, and RGDP60 can be omitted from the regression. What is the p-value of the F-statistic?

Using the data set Growth described in Empirical Exercise 4.1, excluding the data for Malta, run the following five regressions: Growth on
(1) TradeShare and YearsSchool; (2) TradeShare and ln(YearsSchool); (3) TradeShare, ln(YearsSchool), Rev_Coups, Assassinations and ln(RGDP60); (4) TradeShare, ln(YearsSchool), Rev_Coups, Assassinations, ln(RGDP60), and Trade- ( ) Share ln YearsSchool × ; and (5) TradeShare, 2, TradeShare 3 TradeShare , ln(YearsSchool), Rev_Coups, Assassinations, and ln(RGDP60). a. Construct a scatterplot of Growth on YearsSchool. Does the relationship look linear or nonlinear? Explain. Use the plot to explain why regression (2) fits better than regression (1).

b. In 1960, a country contemplated an education policy that would increase average years of schooling from 4 years to 6 years. Use regression (1) to predict the increase in Growth. Use regression (2) to predict the increase in Growth. Boost your grades with expert assignment help today!

c. Test whether the coefficients on Assassinations and Rev_Coups are equal to zero using regression (3).

d. Using regression (4), is there evidence that the effect of TradeShare on Growth depends on the level of education in the country?

Reference no: EM133907724

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