# Question

a. Using the 10 points shown in the following table, find the equation of the line of best fit, yˆ = b0 = b1x and graph it on a scatter diagram.

b. Find the ordinates for the points on the line of best fit whose abscissas are x = 1,3, 5, 7, and 9.

c. Find the value of e for each of the points in the given data (e = y - yˆ)

d. Find the variancese2 of those points about the line of best fit by using formula (13.6).

e. Find the variance se2 by using formula (13.8). (Answers to parts d and e should be the same.)

b. Find the ordinates for the points on the line of best fit whose abscissas are x = 1,3, 5, 7, and 9.

c. Find the value of e for each of the points in the given data (e = y - yˆ)

d. Find the variancese2 of those points about the line of best fit by using formula (13.6).

e. Find the variance se2 by using formula (13.8). (Answers to parts d and e should be the same.)

## Answer to relevant Questions

The following data values are from a random sample of 40 college students; the data show the students’ gender, American College Test (ACT) composite scores, and grade point averages (GPAs) after their first term in ...Using the estimated standard error of regression, sb1 found in Exercise 13. 53 for the number of hours studied–exam grade relationship, find the 95% confidence interval for the population slope b1. The equation for the ...Determine the critical value(s) and regions that would be used in testing each of the following null hypotheses using the classical approach: A study in Physical Therapy reports on seven different methods to determine proper crutch length plus two new techniques using linear regression. One of the regression techniques uses the patient’s reported height. The ...Help Mr. B, the store manager in Exercises 13. 77 and 13. 78 (and Exercises 12.44–12.46), by analyzing the relationship between the numbers of items purchased daily and the total daily sales in the data from the first 10 ...Post your question

0