# Question

(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 freedom, and critical value for your test.

(c) Interpret the p-value for the slope.

(d) Did the sample support your hypothesis about the sign of the slope?

(b) Do a two-tailed t test for zero slope at α = .05. State the hypotheses, degrees of freedom, and critical value for your test.

(c) Interpret the p-value for the slope.

(d) Did the sample support your hypothesis about the sign of the slope?

## Answer to relevant Questions

(a) Based on the R2 and ANOVA table for your model, how would you assess the t? (b) Interpret the p-value for the F statistic. (c) Would you say that your model's t is good enough to be of practical value? Use MegaStat or MINITAB to generate 95 percent confidence and prediction intervals for various X-values. In the following regression, X = total assets ($ billions), Y = total revenue ($ billions), and n = 64 large banks. (a) Write the fitted regression equation. (b) State the degrees of freedom for a two-tailed test for zero ...(a) Interpret the slope of the fitted regression HomePrice = 125,000 + 150 SquareFeet. (b) What is the prediction for HomePrice if SquareFeet = 2,000? (c) Would the intercept be meaningful if this regression applies to home ...Observations are taken on net revenue from sales of a certain LCD TV at 50 retail outlets. The regression model was Y = net revenue (thousands of dollars), X1 = shipping cost (dollars per unit), X2 = expenditures on print ...Post your question

0