Calculate Coefficient of Correlation from the following data:0.10.20.30.40.50.60.7y30,00050,00060.00080,0001.00,0001,10,000 1.30,000

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Answered: Calculate Coefficient of Correlation…

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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Calculate the coefficient of correlation from the following data and comment on the result : Experience (X): 16 Preformance (Y): 23 12 22 18 24 4 17 3 19 10 20 12 21 18
Given the following data, calculate the Spearman correlation: |-0.5 0.5 |-1.4 1.4 |-1.1 1.1 |-0.5 0.5 |-1.5 1.5 |-0.2 0.2
An r value of .8 indicates a strong positive correlation. True False
Use the Pearson r correlation table to answer questions about the relations between table variables (symbols: * p < .05, ** p < .01, *** p < .001). variable contacts demeanor preparation contacts 1 -0.139 -0.004 demeanor -0.139 1 0.886*** preparation -0.004 0.886*** 1
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.
Perform rank correlation analysis on the following data set: x y -5 1.9 -4 0.9 -3.25 0.7 -2.55 -0.5 -1.85 -1.2 -0.9 -1.7 5.5511151231258E-17 0.7 0.8 1.5 1.55 1.6 2.35 -0.1 3.3 0.8 4.1 -1.1 5.1 -0.9 5.8 -0.8 6.7 0.7 What is the rank correlation coefficient? (Round to three decimal places.) What is the critical rho value at a 0.01 significance? Do we have correlation? Yes, the rank correlation coefficient is smaller (in absolute value) than the critical rho value. No, the rank correlation coefficient is larger (in absolute value) than the critical rho value. No, the rank correlation coefficient is smaller (in absolute value) than the critical rho value. Yes, the rank correlation coefficient is larger (in absolute value) than the critical rho value.
The table below lists the mean systolic blood pressure during surgery (mmHg) along with blood loss (ml). Use this table to answer the next three (3) questions . BP Blood Loss 95274 90 170 Strength of Relationship 125 352 105317 weak moderate 110 171 105 150 90 245 90 120 none none 1/4 * 1/2; 3/4 13. Does the correlation coefficient indicate a strong linear correlation ? ( A) Yes ( B) No 14. Approximately what blood loss would you predict for a blood pressure reading of 140 ( A) 319 (B) 363 ( C) 401 ( D) 635 15. Do these data provide sufficient evidence , at the 0.05 level of significance , to indicate that the two variables are indeed correlated ?
Annual high temperatures in a certain location have been tracked for several years. Let X represent the year and Y the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between X and Y. y 1 18.66 2 24.02 24.08 4 27.14 30.9 6 35.16 7 37.12 8 37.68 9 40.94 10 45.6 11 45.56 12 48.72 13 51.48 r =
A past STAT 200 student tells you that there is a very strong positive linear association between the STAT 200 final exam score and the WeBWork Assignment total. What is a plausible value of the correlation coefficient (r)? OA. -1.1 OB. 0.95 OC. -0.95 OD. 0.01 OE. 1.1 OF. 0.56
A correlation value of -0.15 is considered a(n) ______ correlation. a. insignificant b. small c. large d. medium
Which number below is representative of the largest correlation? r = -0.75 r = .05 r = -0.45 r = 0.65
Based on the data shown below, calculate the correlation coefficient (to three decimal places) x y 5 16.15 6 14.64 7 14.93 8 14.32 9 15.91 10 15.9 __?__

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Calculate Coefficient of Correlation from the following data: 0.1 0.2 0.3 0.4 0.5 0.6 0.7 30,000 50,000 60.000 80,000 1.00.000 1,10,000 1.30,000