# Question

Refer back to the regression equation in exercise 12.12: NetIncome = 2,277 + .0307 Revenue. Recall that the variables are both in millions of dollars.

(a) Calculate the residual for the x, y pair ($41,078, $8,301). Did the regression equation underestimate or overestimate the net income?

(b) Calculate the residual for the x, y pair ($61,768, $893). Did the regression equation underestimate or overestimate the net income?

(a) Calculate the residual for the x, y pair ($41,078, $8,301). Did the regression equation underestimate or overestimate the net income?

(b) Calculate the residual for the x, y pair ($61,768, $893). Did the regression equation underestimate or overestimate the net income?

## Answer to relevant Questions

Refer back to the regression equation in exercise 12.14: Credits = 15.4 – .07 Work. (a) Calculate the residual for the x, y pair (14, 18). Did the regression equation underestimate or overestimate the credits? (b) ...Annual Percent Return On Mutual Funds (n = 17) (a) Use Excel to make a scatter plot of the data. (b) Select the data points, right-click, select Add Trendline, select the Options tab, and choose Display equation on chart and ...Below is a regression using X = average price, Y = units sold, n = 20 stores. (a) Write the fitted regression equation. (b) Write the formula for each t statistic and verify the t statistics shown below. (c) State the ...Review the two residual plots below. Do either of these show evidence that the regression error assumptions of normality and constant variation have been violated? Explain. (a) Does the 95 percent confidence interval for the slope include zero? If so, what does this tell you? If not, what does it mean? (b) Do a two-tailed t test for zero slope at α = .05. State the hypotheses, degrees of ...Post your question

0