A data set is given below. (a) Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y. (b) Given that x=3.6667, sx=2.3381, y=4.5833, sy=1.6376, and r=−0.9315, determine the least-squares regression line. (c) Graph the least-squares regression line on the scatter diagram drawn in part (a). x 1 1 3 5 6 6 y 5.4 6.8 5.8 3.6 2.8 3.1

A data set is given below. (a) Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y. (b) Given that x=3.6667, sx=2.3381, y=4.5833, sy=1.6376, and r=−0.9315, determine the least-squares regression line. (c) Graph the least-squares regression line on the scatter diagram drawn in part (a). x 1 1 3 5 6 6 y 5.4 6.8 5.8 3.6 2.8 3.1

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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x	1	1	3	5	6	6
y	5.4	6.8	5.8	3.6	2.8	3.1

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A data set is given below. (a) Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y. (b) Given that x = 3.6667, sx =2.4221, y = 3.8667, sy = 1.8435, andr= -0.9525, determine the least-squares regression line. (c) Graph the least-squares regression line on the scatter diagram drawn in part (a). D O A. (a) Choose the correct graph below. Ay 6- X y 0 0 2 3 5 6 6 5.8 5.7 5.0 2.8 1.7 2.2 O G B. Ay 6- Q (...) C. 0- ● Q D. Ау 0- X 6
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