Suppose we have a sample of 18 pairs of (x, y). Also suppose we have,Sz=9.76E(x – ¤)(y – 9)=1974.2Sy=19.3Using this information, what is the correlation coefficient of the relationship? Roundonly your final answer to two decimal places.O 20.83O 0.310.620.86O 0.19

Answered: Image /qna-images/answer/02e3e368-244d-4a47-a2e5-998e8f34f34b.jpg

Answered: Suppose we have a sample of 18 pairs of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Question 11 Suppose that for a set of (x,y) data, r = 0.2916. Find the linear correlation coefficient. Do not round. Submit Question
10 10 10 10 10 (I) If Ex, = 65, Ey, = 40, >x =925, Ey = 400 and Ex, y, = 584, then find i=1 i=l i=1 i=1 i=1 the correlation coefficient between X and Y.
4. Question Draw and upload two datasets that have the same correlation coefficients but different slopes. Use the graphs below as a template for your submission. * (Sext |0, 0.5, Y'I, ext(0.5, e, x'}1 * (Pext10, 0.5. Y'i, Text(0.5. o, x') 1.0 1.0 0.8 - 0.8 0.6 0.6 0.4 - 0.4 0.2- 0.2 0.0 0.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 0.2 0.4 0.6 0.8 1.0 plot of chunk cor_slope
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.
question 9
For numbers 11 and 12: In a study of sugarcane, the researchers obtained a Pearson correlation coefficient between yield and plant height of sugarcane equal to 0.80 while that between stalk diameter and plant height of sugarcane equal to -0.94. 11. Which of the following is (are) TRUE about the results obtained in the study? 1. For every unit change in the stalk diameter, there is a 0.80 unit change in plant height. II. The linear relationship between plant height and yield is stronger than the linear relationship between plant height and stalk diameter. A. I only B. II only C. Both I and II A. Correlation Analysis B. Simple Linear Regression Analysis D. Neither I nor II 12. If the researchers further wanted to determine if plant height sugarcane is linearly dependent on the yield and stalk diameter, which of the following analysis would be most appropriate to use? C. Multiple Linear Regression Analysis D. Quadratic Regression Analysis
22. Given a random sample {(x₁, y₁), (x₂, y2), (xn. Yn)} such that Sxx = 107 and Syy = 54.75. If the regres line that relates the variables X and Y has a slope of 0.257, find the linear correlation coefficient r. A 0.069 B 0.359 C 0.083 D 0.453
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.
A7. Calculate Α correlation coefficient from the following data: N- 10, Σ X= 140, Σ Υ=150 Σ (X- 10)7Ξ 180, Σ (Y- 15)2215, Σ(Χ-10) (Υ-15)-69
5. Use the following table to answer the question given below. Coefficient of correlation Dimension Sig (p) with variable F A -0.053 0.000 B 0.821 0.000 C -0.755 0.000 D 0.255 0.000 E -0.632 0.000 7 Comment on the correlation coefficient values (i.e. the relationship and its strength) given in the above table.
Example 3 : The tangent of the angle between two regression lines is 0.6 and if 1 =-0,, find the correlation coefficient between x and y. 2

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

Suppose we have a sample of 18 pairs of (x, y). Also suppose we have, 8z=9.76 Σ(τ-3 (y -)-1974.2 Sy=19.3 Using this information, what is the correlation coefficient of the relationship? Round only your final answer to two decimal places. O 20.83 0.31 0.62 0.86 O 0.19