8-3. From the following table calculate the coefficient of correlation by Karl Pearson'smetkod.6.9.1048.Y118.Arithmetic means of X and Y series are 6 and 8 respectively.

Introduction - The Karl Pearson coefficient or correlation formula is expressed as -…

Answered: 8-3. From the following table calculate…

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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9. The Spearman rank-order correlation coefficient is used to quantify of the direction and strength of the relationship between two ________ variables. interval ratio nominal ordinal
© 44mins X What is the relationship between the attendance at a major league ball game and the total number of runs scored? Attendance figures (in thousands) and the runs scored for 12 randomly selected games are shown below. Attendance 50 13 54 34 31 60 60 31 42 48 59 Runs 7 5 4 3 8 10 4 6 7 7 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: Ho: ?v = 0 H1: ?v + 0 The p-value is: (Round to four decimal places) c. Use a level of significance of a = 0.05 to state the conclusion of the hypothesis test in the context of the study. O There is statistically significant evidence to conclude that a game with a higher attendance will have more runs scored than a game with lower attendance. O There is statistically significant evidence to conclude that there is a correlation between the attendance of baseball games and the runs scored. Thus, the regression line is useful. O There is statistically insignificant…
Indicate whether 25 is sufficient or whether a sample of 50 would be necessary. You will want to calculate the probability of the sample mean being between $11,000 and $13,000 for both a sample size of 25 and 50. (Thank You!)

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8-3. From the following table calculate the coefficient of correlation by Karl Pearson's metkod. 2 10 4 8. Y 9. 11 8. 7. Arithmetic means of X andY series are 6 and 8 respectively.