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Trade Balance (% GDP) 8 13.3 - 1.8 - 5.6 - 2.4 10.5 9 4.3 -0.5 - 4 15.6 10.5 3.2 10.5 0.9 2.7 -

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Trade Balance (% GDP) 8 13.3 - 1.8 - 5.6 - 2.4 10.5 9 4.3 -0.5 - 4 15.6 10.5 3.2 10.5 0.9 2.7 - 5.6 8.4 0.1 - 8.8 GDP ($ per capita) 32,026 43,688 16,634 24,589 7,407 46,466 32,967 42,877 37,751 30,773 52,327 31,985 11,546 30,328 42,143 28,459 3,529 59,425 35,874 3,158 Since significantly different. the 95% confidence interval for the intercept from the original model without country X the intercept from the new model with the country X, the intercepts the intercept from new model, the slopes significantly different. Since the 95% confidence interval for the slope from the original model (b) Explain any differences between r and so for the two fits considered in part (a). OA. The value of r is significantly larger for the new model with country X. This is because country X has the largest response. The value of s does not change significantly because the residual for country X is typical. B. The value of r is significantly larger for the new model with country X. This is because country X has the largest response. The value of so is significantly larger for the new model with country X. This is also because country X has the largest response. OC. The value of r does not change significantly because country X is fairly close to the least squares regression line. The value of s. is significantly larger for the new model with country X. This is because An economic organization tracks summary statistics of various countries. These include GDP (gross domestic product per capita) and trade balances (measured as a percentage of GDP). Exporting countries tend to have large positive trade balances. Importers have negative balances. The data are shown in the accompanying table. Formulate the SRM with GDP as the response and Trade Balance as the explanatory variable. Complete parts (a) through (c) below. Click the icon to view the data table. (a) Country X reported the highest positive balance of trade, 23.4% of GDP and per capita GDP equal to $67,000. Fit the least squares equation both with and without country X and compare the results. Does the fitted slope change by very much? Find the least squares equation without country X. Complete the equation below. Estimated GDP ($ per cap) = + Trade Bal (% GDP) (Round to the nearest integer as needed.) Find the least squares equation with country X. Complete the equation below. Estimated GDP ($ per cap) = =+Trade Bal (% GDP) (Round to the nearest integer as needed.) Compare the intercepts and the slopes for the two least squares equations. Since the 95% confidence interval for the intercept from the original model without country X the intercept from the new model with the country X, the intercepts significantly different

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