The value of the sample correlation coefficients are for these data is approximately -0.879. Answer the following. Carry yout intermediate, computations to at least four decimal places, and round your answers as specified below. a. What is the value of the slope of the least squares regression line for these data? Round your answer to at least two decimal places. b. What is the value of the y-intercept of the least squares regression line for these data? Round your answer to at least two decimal places.

Which one of the following numbers for the standard error of estimate would indicate the best regression fit? 100 50 1000 10

The following sample observations were randomly selected. (Round intermediate calculations and final answers to 2 decimal places.) 6 7 6 2 Click here for the Excel Data File a. The regression equation is ŷ = b. When X is 5 this gives ŷ = 54

Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression line? About the unexplained variation? r= - 0.884 Calculate the coefficient of determination. (Round to three decimal places as needed.)

Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression​ line? About the unexplained​ variation? r = 0.444   Calculate the coefficient of determination. (Round to three decimal places as needed.)

r = -0.579 Calculate the coefficient of determination. (Round to three decimal places as needed.) What does this tell you about the explained variation of the data about the regression line? % of the variation can be explained by the regression line. (Round to one decimal place as needed.) About the unexplained variation? % of the variation is unexplained and is due to other factors or to sampling error. (Round to one decimal place as needed.)

5 prac

Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression​ line? About the unexplained​ variation?

The least squares regression line for these data has a slope of approximately -0.27. Answer the following. Carry your intermediate computation to at least four decimal places, and rounder answers as specified below.a. What is the value of the y-intercept of the least squares regression line for these data? Round your answer to at least two decimal places.b. What is the value of the sample correlation coefficients for these data? Round your answer to at least three decimal places.

An automobile rental company wants to predict the yearly maintenance expense (Y) for an automobile using the number of miles driven during the year () and the age of the car (, in years) at the beginning of the year. The company has gathered the data on 10 automobiles and run a regression analysis with the results shown below:.   Summary measures       Multiple R 0.9689       R-Square 0.9387       Adj R-Square 0.9212       StErr of Estimate 72.218                 Regression coefficients         Coefficient Std Err t-value p-value Constant 33.796 48.181 0.7014 0.5057 Miles Driven 0.0549 0.0191 2.8666 0.0241 Age of car 21.467 20.573 1.0434 0.3314 Use the information above to estimate the annual maintenance expense for a 10 years old car with 60,000 miles.