Test the significance of yourcomputed correlationcoefficient at a=0.05.The following are test scores of 10 students in abstract reasoning (X) and aithmetic (Y).X100 95 78 8579 89 90 1007488Y80908070554050885072

Solution-: Let, X=Abstract reasoning and Y=Arithmetic Find the correlation coefficient and test the…

Answered: Test the significance of your computed…

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 following data gives the number of hours 10 students spent studying and their corresponding grades on their midterm exams. Hours Spent Studying 0 0.5 1 1.5 2 2.5 3 4 5 5.5 Midterm Grades 60 66 69 75 78 81 87 93 96 99 Calculate the correlation coefficient, r. Round your answer to three decimal places.
The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam. Calculate the correlation coefficient r. Hours, x 8 10 7 13 7 9 9 10 11 8 Scores, y 72 87 67 95 73 85 92 97 97 78 Question content area bottom Part 1 A. 0.991 B. 0.847 C. 0.761 D. 0.654
Listed below are the budgets (in millions of dollars) and the gross receipts (in millions of dollars) for randomly selected movies. Answer parts a-c. Budget (x) Gross (y)60 6091 6050 4839 62193 558105 14087 52 a. Find the value of the linear correlation coefficient r.
Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. x 3 7 15 32 75 y 40 35 30 26 18 (a) Make a scatter diagram of the data and visualize the line you think best fits the data. Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website. (b) Would you say the correlation is low, moderate, or strong? positive or negative? strong and negative moderate and negative strong and positive low and negative low and positive moderate and positive (c) Use a calculator to verify that Σx = 132, Σx2 = 6932, Σy = 149, Σy2 = 4725, and Σxy = 2997. Compute r. (Round your answer to three decimal places.)r = As x increases, does the value of r imply that y should tend to increase or decrease? Explain. Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. Given our value of r, y should tend to…
Find the value of the linear correlation coefficient r using the paired data below. 75 35 95 16 35 65 16 y 165 146 136 177 195 157 115 O0.109 O-0.078 O0214 O-0.086
I only need help with the blank boxes to be filled with the answer.
The data below show the Marks scored by eight IT students in two tests: Probability and Statistics(X) ,and Programming (Y). X 67 42 85 51 39 97 81 70 Y 70 59 71 38 55 62 80 75 Calculate product moment correlation coefficient
Q3:Calculate the Pearson correlation coefficient between the student s weight and height Wight of student(x) 75 The tall(y) 175 72 170 69 172 66 165 63 163
B Research was conducted on the amount of training for 5K race and the time a contestant took to run the race. The researcher recorded the number of miles a contestant ran during the last month of training and the time it took the contestant to complete the 5K. The results are below. Miles Trained 66 71 83 100 110 110 Time (Minutes) 23 27 35 35 45 47 (a) Give the correlation coefficient. Round to one decimal place. (b) Use technology to write the regression equation that predicts the time it takes a contestant to complete the race by using the miles trained as the explanatory variable. Complete the missing parts of the equation below, rounding values to one decimal place. y = (c) Interpret the y-intercept in the context of this scenario. Each additional mile of training reduces the time needed to complete the 5K by 0.5 minutes. A contestant who has not trained at all in the last month can expect to complete the 5K in -6.7 minutes. Each additional mile of training reduces the time…
Here is a bivariate data set. x y 64 101 79 18 61 96 78 55 56 8 78 -7 60 26 76 7 99 55 Find the correlation coefficient and report it accurate to four decimal places. r = A good correlation calculator is found at Correlation Calculator

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Test the significance of your computed correlation coefficient at a=0.05. The following are test scores of 10 students in abstract reasoning (X) and arithmetic (Y). x 100 95 78 85 74 79 89 90 100 100 88 Y 80 90 80 70 55 40 50 88 50 72