# Question: Determine the least squares regression line for the data in Exercise

Determine the least-squares regression line for the data in Exercise 15.7, then calculate the sum of the squared deviations between y and ŷ.

In exercise

A scatter diagram includes the data points (x = 3, y = 8), (x = 5, y = 18), (x = 7, y = 30), and (x = 9, y = 32). Two regression lines are proposed: (1) ŷ = 5 + 3x, and (2) ŷ = – 2 + 4x.

In exercise

A scatter diagram includes the data points (x = 3, y = 8), (x = 5, y = 18), (x = 7, y = 30), and (x = 9, y = 32). Two regression lines are proposed: (1) ŷ = 5 + 3x, and (2) ŷ = – 2 + 4x.

**View Solution:**## Answer to relevant Questions

For the regression analysis of the data in Exercise 15.79: a. Use the 0.05 level in testing whether the population coefficient of correlation could be zero. b. Use the 0.05 level in testing whether the population regression ...A tire company has carried out tests in which rolling resistance (pounds) and inflation pressure (pounds per square inch, or psi) have been measured for psi values ranging from 20 to 45. The regression analysis is summarized ...For the regression equation obtained in Exercise 15.91, analyze the residuals by (a) Constructing a histogram, (b) Using a normal probability plot, (c) Plotting the residuals versus the x values, and (d) Plotting the ...A study describes operating costs for comparable manufacturing plants operating in 15 different U.S. metropolitan areas. From the costs obtained in the study, the following multiple regression equation was developed: ŷ = ...In considering whether to implement a program where selected entering freshmen would be required to take a precalculus refresher course before moving on to calculus, a university’s business college has given mathematical ...Post your question