llustration 21.(a) Calculate Spearman's coefficient of rank correlation for the following data:-6153989581755955Y47253237 /30403945

Given data is X 53 98 95 81 75 61 59 55 Y 47 25 32 37 30 40 39 45

Answered: llustration 21.(a) Calculate Spearman's…

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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The table below illustrates the College Placement Exam rating and the GWA of students in one semester. Find the linear correlation coefficient for the data Student 1 3 4 5 7 8 9 10 Placement Exam 83 89 92 77 81 81 85 85 87 84 GWA 83 85 90 80 83 85 87 84 90 85 Select the correct response: 0.8134 0.0162 0.7207 0.9201
A statistics professor is interested in finding out if there's a relationship between the final exam scores in Statistics 102 and the final exam scores of the same students who took Statistics 101. The data are shown in the table. Stat 101 86 93 67 72 47 96 84 72 75 Part: 0/2 Part 1 of 2 Stat 102 84 95 63 73 60 90 90 62 74 (a) Use a graphing calculator to find the correlation coefficient for these data. Round to three decimal places. The correlation coefficient, rounded to three decimal places, is X S
The table shows the money earned from selling ice cream at a Galveston restaurant as it relates to the high temperature for the day. Temperature 58 61 71 78 81 85 89 96 100 (Fahrenheit) Ice Cream Sales 210 240 515 609 796 800 950 994 900 (Dollars) What does the correlation coefficient for the data indicate about the strength of the linear association between the temperature and ice cream sales in Galveston? А Strong negative correlation Weak negative correlation C Strong positive correlation Weak positive correlation
47
(c) What is rank correlation? How to rank data? Rank and find the rank correlation for the following data of English and Math marks. Math English (Marks) 56 (Marks) 66 75 70 45 40 71 60 61 65 64 56 58 59 80 77 76 67 61 63
The data below comprises of the number of hours (X) studied and the exam grade (Y) obtained for 6 first year students registered at UWC. Calculate the correlation coefficient (rounded off to four decimals). X 2 5 1 2 3 3 Y (%) 73 90 60 80 89 87 SSxy = 66.6667 SSx = 9.3333 SSy = 678.8333 = 2.6667 = 79.8333 b = 7.1592 A. 0.7015 B. -0.9865 C. 0.3106 D. 0.8375
Using technology, what is the correlation coefficient? The weight (in pounds) and height (in inches) for a child were measured every few months over a two-year period. The results are given in the table. O -0.997 O -0.503 Weight (x) 8. 12 18 24 30 32 35 37 40 O 0.503 Height (y) 22 23 26 30 32 33 5 36 38 O 0.997
A researcher wants to see if the fat content in burgers and their calories are related. Fat (g) Calories What is the correlation coefficient, r ? O210.954 11.055 O 0.922815 19 31 34 35 39 39 43 410 580 590 570 640 680 660 O 0.960633 DELL
Q. (a) What is Correlation Coefficient? Explain it types and its application. (7+13)(b) Calculate the rank correlation coefficient for the following data of two tests given to candidates for a job.Test 1 76 83 80 79 65 81Test 2 80 79 85 60 64 58
What is the relationship between the number of minutes per day a woman spends talking on the phone and the woman's weight? The time on the phone and weight for 8 women are shown in the table below. Time 82 24 64 52 82 12 77 89 Pounds 181 125 156 142 158 103 148 161 Find the correlation coefficient: r=r= Round to 2 decimal places. The null and alternative hypotheses for correlation are:H0:H0: ? μ ρ r == 0H1:H1: ? r ρ μ ≠≠ 0 The p-value is: (Round to four decimal places) Use a level of significance of α=0.05α=0.05 to state the conclusion of the hypothesis test in the context of the study. There is statistically insignificant evidence to conclude that there is a correlation between the time women spend on the phone and their weight. Thus, the use of the regression line is not appropriate. There is statistically insignificant evidence to conclude that a woman who spends more time on the phone will weigh more than a woman who spends less time on the phone. There…

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llustration 21.(a) Calculate Spearman's coefficient of rank correlation for the following data:- 75 53 98 95 81 61 59 55 47 25 32 37 /30 40 39 45