vil 36. A computer while calculating the correlation coefficient between two variablesX and Y from 25 pairs of observations obtained the following results :N- 25, Σ X- 125 , Σ x2 = 650ΣΥ= 100, ΣΥ-460, Σ Χ Υ- 508erfT (d)mue erlt Cr.0 ed otilln tooosulsv ertt bnit

Obtain the value of the correlation. The value of the correlation coefficient is obtained below:…

Answered: vil 36. A computer while calculating…

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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Compute the correlation coefficient for the following set of coordinates. Use the table provided to calculate your answer round to the nearest hundredth.
Determine the linear correlation coefficient, r, using the following summary data. r = 0.910 r = 0.846 r = 0.968 r = 0.950
Question 1 of 5 (1 point) Attempt 2 of Unlimited Compute the correlation coefficient. 16523 y1 365 4 Send data to Excel The correlation coefficient is Round the answers to three decimal places. Check Answer 2021 McGrae-H to search F2 F3 F4 F5 F6 F8 F9 &
ample 8•10. A computer while calculating correlation coefficient between two variables X and Y from 25 pairs ofobservations obtained the following results. n = 25, ΣχΕ 125, Ex2= 650, "Ey = 100, Σy-460 ΣΧΥ-508 correctly Prove that the It was, however, discovered at the time of checking that two pairs of observations were copied They noere taken as (6, 14) and (8, 6) while the correct values were (R, 12) and (6, correct value of the correlation coefficient should be 2/3.
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A computer while calculating the correlation coefficient between the variables X and Y obtained the following results: N= 30, ΣΧ-120, ΣΧ600, ΣΥ-90, ΣΥ250, ΣΧΥ-356. It was, however later discovered at the time of checking that it had copied down two pairs of observations: X Y wrongly as while the correct values are X Y 8 10 8 12 10 8 12 7. Find the correct value of correlation coefficient between X and Y.
O 0.029 QUESTION 15 The owner of Cypres Recordings investigated the relationship between sales (y) and the amount spent on advertising (x). A random sample of 3 Recordings gives the following information. (x1) = 17, (y1) = 26, x2= 20, y2 = 28, x3 = 32, y3=27 Calculate the correlation coefficient? (Round answer to three decimal places ex. 2.091)
Two pair misread values. A computer while calculating the correlation coefficient.between two variables x and y obtained the following constants : N=25, Ex=125, Ex=650, Ey-100, Ey=460, Exy=508. It was however later discovered at the time of checking that be had copied down two pairs of observations as (6, 14), (8, 6) while the correct values were (8, 12), (6, 8). Obtain the correct value of the correlation coefficient between x and y.
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9.12 For the chemical reaction data of Table 7.4 with dependent variable y2, compute the diagnostic measures ŷi, &i, hii, ri, ti, and Di. Display these in a table similar to Table 9.1. Are there outliers or potentially influential obser- vations? Calculate PRESS and compare to SSE.
7

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vil 36. A computer while calculating the correlation coefficient between two variabies X and Y from 25 pairs of observations obtained the following results : erT (d)- brie Πεν N-25 , ΣΧ- 125, Σ Χ2650 ΣΥ- 100, ΣΥ2460, Σ Χ Υ-508 aulsv erl bnit o pe o43 M tood %D mua erlt %3D