Find out Spearman's rand correlation coefficient for thefollowing data:Tea Rate:75 88 95 70 60 80 81 52Coffee Rate: 120 134 150 115 110 140 142 100

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Answered: Find out Spearman's rand 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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A grocery store manager did a study to look at the relationship between the amount of time (in minutes) customers spend in the store and the amount of money (in dollars) they spend. The results of the survey are shown below. Time 21 19 23 25 17 12 19 Money 106 80 87 96 80 39 92 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: Họ: ? H1: ? v + O 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 insignificant evidence to conclude that a customer who spends more time at the store will spend more money than a customer who spends less time at the store. O There is statistically significant evidence to conclude that there is a correlation between the amount of time customers spend at the store and the amount of money that they spend at the store. Thus, the regression line is…
The following table shows the number of years of work experience and the crime rate ratings for selected US cities: X: Years of Work Experience 11 15 12 25 20 40 Y: Crime Rate Ratings 52 41 45 15 20 15 a. Determine the Pearson's Coefficient of Correlation for the given data. Answer rounded to two decimal places
Find Karl Pearson's coefficient of correlation from the following data : Wages Cost of living Wages Cost of living 104 101 102 102 100 98 99 99 97 95 99 97 98 96 95 92 95 94 90 91
The following data relate to the age of ten employees and the number of days they reported sick in a month Employee age 20 30 32 35 40 46 52 55 58 62 Number of days absent: 11 12 10 13 14 16 15 17 18 19 i. Compute the Pearson Correlation coefficient between Employee age and number of days absent ii. Test the statistical significance of the correlation coefficient computed in (i) above
A group of farmer wants to know the correlation between the certain amount of fertilizer and the crops yield. With the same land area and different amount of fertilizer yields the following crops. Fertilizer 23 18 15 12 13 14 15 23 20 20 19 22 12 10 16 crops 78 66 54 48 65 71 77 57 69 74 56 60 54 59 63 Does it appear there is relationship between the fertilizer and crops? Compute the coefficient of correlation. Determine at 0.05 level of significance whether the correlation is greater than zero.
Calculate the rank correlation coefficient for the following data: :| 39 65 62 90 82. 75 25 98 36 78 y : 47 53 58 86 62 68 60 91 51 84

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Find out Spearman's rand correlation coefficient for the following data: Tea Rate: 75 88 95 70 60 80 81 52 Coffee Rate: 120 134 150 115 110 140 142 100