Answered: Find teh correlation coefficient…

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 0.52 0.49 0.49 0.45 0.44 0.43 0.42 0.41 0.40 y 75 80 72 70 71 70 65 60 62 Find coefficient of correlation and interpret the result.
Find the coefficient correlation from the following data X 78 36 98 25 75 82 90 62 65 39 Y 84 51 91 60 68 62 86 58 53 47
Weight (lbs.) 173 184 194 214 168 220 188 188 207 167 217 Systolic Blood Pressure 132 143 153 162 154 168 137 149 159 128 1 1. The sample correlation coefficient is _____________
Below is data for two variables, X and Y. Answer the questions that follow. X Y X-MX Y-MY (X-MX)2 (Y-MY)2 (X-MX)(Y-MY) 3 3 -2 -1 4 1 2 4 3 -1 -1 1 1 ___ 6 4 1 ___ 1 0 0 7 6 2 2 ___ 4 4 Positive or negative correlation?
èstion 1 Provide an appropriate response. In an area of the Great Plains, records were kept on the relationship between the rainfall (in inches) and the yield of wheat (bushels per acre). Calculate the linear correlation coefficient. 173 79 122 | 105 53.5 142 | 205 85.4 522 349 Rainfall (in inches), x 15.1 12 8.7 17.7 Yield (bushels per acre), y O 0.900 O 0.981 O 0.998 49.2 618 62 818 O 0.899 A Moving to another question will save this response. Question 1 of 20>> 11:33 AM (ゆッ 5/19/2021 PrtSen Home PgUP End E D B Alt
Find correlation coefficient If xi 0 11 21 23 14 25 yi 5 43 45 47 51 54
Find the value of the linear correlation coefficient r using the paired data below. 75 35 95 16 35 65 16 y 165 146 136 177 195 157 115 O0.109 O-0.078 O0214 O-0.086
Fill in the blank. A A Jhy trial exists between two variables when the values of one variable are somehow associated with the values of the other variable. exists between two variables when the values of one variable are somehow associated with the values of the other variable. correlation inference difference
find t reject or fail to reject
What is the value of the correlation coefficent, r? Is the strength of the linear relationship strong, moderately strong, somewhat weak or very weak?

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Find teh correlation coefficient between X and Y X 57 58 59 59 60 61 62 64 Y 77 78 75 78 82 82 79 81