We have just conducted a study comparing cognitive development of low- and normal-birthweight babies who have reached 1 year of age. Using a scale we devised, we found that the sample means of the two groups were 25 and 30, respectively, with a pooled standard deviation of 8. Assume that we wish to replicate this experiment with 20 subjects in each group. If we assume that the true means and standard deviations have been estimated exactly, what is the effect size in this question ? what is the power of the test?

Name: We have just conducted a study comparing cognitive development of low-
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Description: We have just conducted a study comparing cognitive development of low- and normal-birthweight babies who have reached 1 year of age. Using a scale we devised, we found that the sample means of the two groups were 25 and 30, respectively, with a poole

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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We have just conducted a study comparing cognitive development of low- and normal-birthweight babies who have reached 1 year of age. Using a scale we devised, we found that the sample means of the two groups were 25 and 30, respectively, with a pooled standard deviation of 8. Assume that we wish to replicate this experiment with 20 subjects in each group. If we assume that the true means and standard deviations have been estimated exactly, what is the effect size in this question ? what is the power of the test?

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