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Description: Researchers conducted a study to determine the influence of having a full-time job on academic grades. If they calculated an R^2 equal to .30, then what is the amount of error in the amount of variance explained by full-time employment on school grad

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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Researchers conducted a study to determine the influence of having a full-time job on academic grades. If they calculated an R^2 equal to .30, then what is the amount of error in the amount of variance explained by full-time employment on school grades?

1. 15% of the grades are correlated with whether or not students have a full-time job
2. 70% of the data is missing overall
3. Having a full-time job is not significantly related to academic performance
4. 30% of the total variance in grades can be predicted if they know employment status

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