Question: Test the slope of the regression line determined in Problem
Test the slope of the regression line determined in Problem 12.7. Use α =.01.
Answer to relevant QuestionsTest the slope of the regression line determined in Problem 12.8. Use α = .10.Advertising .... Sales12.5 ...... 1483.7 ...... 5521.6 ...... 33860.0 ...... 99437.6 ...... 5416.1 ...... 8916.8 ...... 12641.2 ...... 379Construct a 90% prediction interval for a single value of y for Problem 12.7; use x = 100. Construct a 90% prediction interval for a single value of y for Problem 14.2; use x = 130. Compare the results. Which prediction ...Use the following data for parts (a) through (f).a. Determine the equation of the least squares regression line to predict y by x. b. Using the x values, solve for the predicted values of y and the residuals.c. Solve for ...Shown here are the labor force figures (in millions) published by Index Mundi for the country of Bangladesh over a 10-year period. Develop the equation of a trend line through these data and use the equation to predict the ...Compute r2 for Problem 12.24 (Problem 12.6). Discuss the value of r2 obtained.
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