Here is a bivariate data set. 38 -27.4 106.2 20 22.7 181.4 16.1 303.8 5.3 42 6.2 76.5 34 73.2 12.1 143.4 -3.9 91.7 15.2 5.5 17.9 72.8 15 251 27.8 57.7 86.9 21.4 31.5 -13 36.4 56.8 Find the correlation coefficient and report it accurate to three decimal places.

Here is a bivariate data set. 38 -27.4 106.2 20 22.7 181.4 16.1 303.8 5.3 42 6.2 76.5 34 73.2 12.1 143.4 -3.9 91.7 15.2 5.5 17.9 72.8 15 251 27.8 57.7 86.9 21.4 31.5 -13 36.4 56.8 Find the correlation coefficient and report it accurate to three decimal places.

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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4. In a diving competition, the scores of two referees caused controversy. The table below s hows their scores for the players. Try to do Spearman correlation analysis. (10) Athletes 1 2 4 7 8 9. 10 11 12 Referee A 8.3 11.6 9.6 10.6 12 11 11.2 10.5 10.3 11.3 9.8 Referee B 9.8 10.9 10.6 11.6 10.8 10.1 11.9 10.4 11.6 11 10.7 9.6
Here is a bivariate data set. x y 44.5 37.1 33 19.5 40.1 33.9 26 122.3 32.3 44.5 38.6 21.8 44 -36.9 42.5 -16.4 22.4 42.1 24.6 72.5 Use technology to find the correlation coefficient and report it accurate to three decimal places.
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Listed below are amounts of bills for dinner and the amounts of the tips that were left. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a = 0.01. If everyone were to tip with the same percentage, what should be the value of r? Bill (dollars) Tip (dollars) 31.80 52.94 85.82 102.16 60.17 111.77 D 5.46 6.07 15.82 15.40 11.15 20.32 Construct a scatterplot. Choose the correct graph below. O A. O B. Oc. D. Q 25- 25- 25 0- 30 0- 30 Bill Amount ($) 0+ 30 Bill Amount (S) 0- 30 Bill Amount (S) 120 120 120 Bill Amount (S) 120 The linear correlation coefficient is r= 0.954 (Round to three decimal places as needed.) Determine the null and alternative hypotheses. Ho: p H,: P (Type integers or decimals. Do not round.) Tip Amount ($) ip Amount ($) Tip Amount ($) Tip Amount ($)
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re is a bivariate data set. x y 24.8 12.9 35.2 39.9 -1.9 -21 49.5 39.4 29 35.7 34.5 23.8 25.8 12.3 48.7 85.2 23 3.1 23.4 22.7 22.9 3.2 41.7 41.2 36.4 4.9 21.3 23.4 -0.7 5.5 34.8 79.7 Find the correlation coefficient and report it accurate to three decimal places.r = What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a percentage accurate to one decimal place.r² = %
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