You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf weeks), and let y be the weight of the calf (in kilograms). 3 53 16 100 36 200 11 26 150 45 72 A USE SALT Complete parts (a) through (e), given Ex = 93, Ey = 620, Ex = 2359, Ey2 - 82,518, Exy = 13,696, and r = 0.9931. (a) Draw a scatter diagram displaying the data. 25 20 15 10 50 100 150 200 50 100 150 200 x (age of calf (in weeks)) x (age of calf (in weeks)) y(calf weight (in kilograms))
You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf weeks), and let y be the weight of the calf (in kilograms). 3 53 16 100 36 200 11 26 150 45 72 A USE SALT Complete parts (a) through (e), given Ex = 93, Ey = 620, Ex = 2359, Ey2 - 82,518, Exy = 13,696, and r = 0.9931. (a) Draw a scatter diagram displaying the data. 25 20 15 10 50 100 150 200 50 100 150 200 x (age of calf (in weeks)) x (age of calf (in weeks)) y(calf weight (in kilograms))
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:dep%3D28174035&elSBN=9781337713184#Q1
(b) Verify the given sums Ex, Ey, Ex², £y², Exy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.)
Σχ-
Ey =
Ex?
%3D
Ey? =
%3D
Σχy -
(c) Find x, and y. Then find the equation of the least-squares line ŷ = a + bx. (Round your answers to four decimal places.)
y =
%3D
(d) Graph the least-squares line. Be sure to plot the point (x, y) as a point on the line.
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Transcribed Image Text:You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in
weeks), and let y be the weight of the calf (in kilograms).
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A USE SALT
Complete parts (a) through (e), given Ex = 93, Ey = 620, Ex = 2359, Ey² = 82,518, Exy = 13,696, and r 0.9931.
%3D
%3D
%3D
(a) Draw a scatter diagram displaying the data.
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