# Question: Following are the data on study time and score for

Following are the data on study time and score for calculus students from Exercises 4.55 and 4.93.

a. Obtain the linear correlation coefficient.

b. Interpret the value of r in terms of the linear relationship between the two variables in question.

c. Discuss the graphical interpretation of the value of r and verify that it is consistent with the graph you obtained in the corresponding exercise in Section 4.2.

d. Square r and compare the result with the value of the coefficient of determination you obtained in the corresponding exercise in Section 4.3.

a. Obtain the linear correlation coefficient.

b. Interpret the value of r in terms of the linear relationship between the two variables in question.

c. Discuss the graphical interpretation of the value of r and verify that it is consistent with the graph you obtained in the corresponding exercise in Section 4.2.

d. Square r and compare the result with the value of the coefficient of determination you obtained in the corresponding exercise in Section 4.3.

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

A random sample of 10 students was taken from an introductory statistics class. The following data were obtained, where x denotes height, in inches, and y denotes score on the final exam. a. What sort of value of r would you ...The data from Exercise 4.65 for the ages at inauguration and of death for the presidents of the United States are on the WeissStats CD. In exercise The Information Please Almanac provides data on the ages at inauguration and ...The data for estriol levels of pregnant women and birth weights of their children from Exercise 4.105 are on the WeissStats CD. a. Decide whether use of the linear correlation coefficient as a descriptive measure for the ...y = 0.5x − 2 a. Find the y-intercept and slope. b. Determine whether the line slopes upward, slopes downward, or is horizontal, without graphing the equation. c. Use two points to graph the equation. 0.4 and 1 a. Determine whether it slopes upward, slopes downward, or is horizontal, without graphing the equation. b. Find its equation. c. Use two points to graph the equation.Post your question