a. Using the pairs of values for all 10 points, find the equation of the regression line.b. After removing the point with coordinates (1,8), use the pairs of values for the remaining 9 points and find the equation of the regressionline1081c. Compare the results from parts (a) and (b).6-4-0-0 2 4 6 8 10a. What is the equation of the regression line for all 10 points?y =+ x (Round to three decimal places as needed.)Enter your answer in the edit fields and then click Check AnswerFCear AllCheck Answerpartsremaining a. Using the pairs of values for allb. After removing the point with coAy10-line.10sionc. Compare the results from parts6-4-80-0 2468 10a. What is the equation of the regr6-y =+x (Round to three dec4-2-10Enter your answer in the edit fietOKpartsremainingcheck Ansrer

Given Information: There are 10 pairs of values (X, Y) as follows: (1, 8), (3, 3), (3, 4), (3, 5), (4, 3), (4, 4), (4, 5), (5, 3), (5, 4), (5, 5) General form of regression equation is: y=a+bx where, a is the intercept and b is the slope. Regression equation can be obtained using Excel, steps to follow are given below: Enter the data in Excel sheet as follows: Go to DATA -> Data Analysis Select Regression, click ok Enter Input Y range and input X range Check on labels Select Output range Click ok. Excel output obtained is given below: From the output, intercept is 7.234 and slope is -0.766 Thus, the required regression line for the 10 pairs of points is given as: y^=7.234+(-0.766)x (b) Regression equation for 9 pairs of points excluding (1, 8): Remove the row containing the coordinates (1, 8) and follow the same procedure. Excel output obtained is given below: From the output, intercept is 4 and slope is -2.26623e-17 ≈0.0000000000000000226623 So, the regression equation is written as: y^=4+0x (c) Both the regression lines are not similar, because the first regression line has a negative slope to it and the second regression line has no slope (almost equal to 0), there's no slope to it because it is just a straight horizontal line. So, we can say that the removal of the point (1, 8) has a significant effect on the regression line.

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a. Using the pairs of values for all 10 points, find the equation of the regression line. Ay 10 D. After removing the point with coordinates (1,8), use the pairs of values for the remaining 9 points and find the equation of the regression ine E. Compare the results from parts (a) and (b). 8++ 0 2 4 68 10 . What is the equation of the regression line for all 10 points? + x (Round to three decimal places as needed)

a. Using the pairs of values for all 10 points, find the equation of the regression line. Ay 10 D. After removing the point with coordinates (1,8), use the pairs of values for the remaining 9 points and find the equation of the regression ine E. Compare the results from parts (a) and (b). 8++ 0 2 4 68 10 . What is the equation of the regression line for all 10 points? + x (Round to three decimal places as needed)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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How do I go about these two questions followin this asnwer above: B) Ater removing the point with coordinates (2,9), 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).
Given the regression equation Y= 43- 10X, the change in Y when X changes by +5 is O a. -7 O b. +50 C. -50 O d. 43
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