a. Using the pairs of values for all 10 points, find the equation of the regression line. b. After removing the point with coordinates (2,3), use the pairs of values for the remaining 9 points and find the equation of the regression line. c. Compare the results from parts (a) and (b). 02468100246810xy A scatterplot has a horizontal x-scale from 0 to 10 in increments of 1 and vertical y-scale from 0 to 10 in increments of 1. Ten points are plotted with nine points, (4, 6), (5, 6), (6, 6), (4, 7), (5, 7), (5, 7), (6, 7), (4, 8), (5, 8), and (6, 8), forming a square and the tenth point (2, 3) being below and to the left of the square. Question content area bottom Part 1 a. What is the equation of the regression line for all 10 points? y=enter your response here+enter your response herex (Round to three decimal places as needed.) Part 2 b. What is the equation of the regression line for the set of 9 points? y=enter your response here (Round to three decimal places as needed.) Part 3 c. Choose the correct description of the results below. A. The regression line changes, but the change is small. B. The removal of the point has a significant impact on the regression line. C. The regression line is very similar in both cases. D. There is no regression line for the second case because the data are in a pattern.
a. Using the pairs of values for all 10 points, find the equation of the regression line. b. After removing the point with coordinates (2,3), use the pairs of values for the remaining 9 points and find the equation of the regression line. c. Compare the results from parts (a) and (b). 02468100246810xy A scatterplot has a horizontal x-scale from 0 to 10 in increments of 1 and vertical y-scale from 0 to 10 in increments of 1. Ten points are plotted with nine points, (4, 6), (5, 6), (6, 6), (4, 7), (5, 7), (5, 7), (6, 7), (4, 8), (5, 8), and (6, 8), forming a square and the tenth point (2, 3) being below and to the left of the square. Question content area bottom Part 1 a. What is the equation of the regression line for all 10 points? y=enter your response here+enter your response herex (Round to three decimal places as needed.) Part 2 b. What is the equation of the regression line for the set of 9 points? y=enter your response here (Round to three decimal places as needed.) Part 3 c. Choose the correct description of the results below. A. The regression line changes, but the change is small. B. The removal of the point has a significant impact on the regression line. C. The regression line is very similar in both cases. D. There is no regression line for the second case because the data are in a pattern.
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.CR: Chapter Review Exercises
Problem 15CR: Life Expectancy The following table shows the average life expectancy, in years, of a child born in...
Related questions
Question
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a. Using the pairs of values for all
10
points, find the equation of the regression line.b. After removing the point with coordinates
(2,3),
use the pairs of values for the remaining
9
points and find the equation of the regression line.c. Compare the results from parts (a) and (b).
|
|
|
Question content area bottom
Part 1
a. What is the equation of the regression line for all
10
points?y=enter your response here+enter your response herex
(Round to three decimal places as needed.)Part 2
b. What is the equation of the regression line for the set of
9
points?y=enter your response here
(Round to three decimal places as needed.)Part 3
c. Choose the correct description of the results below.
The regression line changes, but the change is small.
The removal of the point has a significant impact on the regression line.
The regression line is very similar in both cases.
There is no regression line for the second case because the data are in a pattern.
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