e solicit two groups of professors at our school. One group agrees to check their email once per day; the other group can check it as often as they wish. After two weeks, we give everyone a standard test of productivity to determine who has the higher (more productive) scores.  The productivity scores from two independent samples are: Group who checks it once a day: sample mean of 43, standard deviation of 4.77, and sample size of 15. Group who check often: sample mean of 39, standard deviation of 4.96, and sample size of 15. Calculate the effect size. What is it and what does that indicate about the effect?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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We solicit two groups of professors at our school. One group agrees to check their email once per day; the other group can check it as often as they wish. After two weeks, we give everyone a standard test of productivity to determine who has the higher (more productive) scores.  The productivity scores from two independent samples are: Group who checks it once a day: sample mean of 43, standard deviation of 4.77, and sample size of 15. Group who check often: sample mean of 39, standard deviation of 4.96, and sample size of 15. Calculate the effect size. What is it and what does that indicate about the effect?



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