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What is the value of r? Select the correct response: -0.7129 0.4507 0.6560 -0.4589

What is the value of r? Select the correct response: -0.7129 0.4507 0.6560 -0.4589

MATLAB: An Introduction with Applications
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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What is the value of r? Select the correct response: -0.7129 0.4507 0.6560 -0.4589
Transcribed Image Text:What is the value of r? Select the correct response: -0.7129 0.4507 0.6560 -0.4589
A college professor is interested in finding out if there is a relationship between the post-test scores of students in Algebra and Calculus when a technology-based method was used in solving. Use 5% level of significance. Data are given below in percentage. Student Algebra Calculus XY x2 y2 1 83 78 6474 6889 6084 80 83 6640 6400 6889 3 97 95 9215 9409 9025 4 95 97 9215 9025 9409 78 87 6786 6084 7569 89 87 7743 7921 7569 7 77 76 5852 5929 5776 81 93 7533 6561 8649 Total 680 696 59458 58218 60970 5. 00
Transcribed Image Text:A college professor is interested in finding out if there is a relationship between the post-test scores of students in Algebra and Calculus when a technology-based method was used in solving. Use 5% level of significance. Data are given below in percentage. Student Algebra Calculus XY x2 y2 1 83 78 6474 6889 6084 80 83 6640 6400 6889 3 97 95 9215 9409 9025 4 95 97 9215 9025 9409 78 87 6786 6084 7569 89 87 7743 7921 7569 7 77 76 5852 5929 5776 81 93 7533 6561 8649 Total 680 696 59458 58218 60970 5. 00
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