18. A random sample of n = 16 scores is obtained from a population with a mean ofu = 45. After a treatment is administered to the individuals in the sample, the sample mean is found to be M = 49.2. a. Assuming that the sample standard deviation is s = 8, compute r and the estimated Cohen's d to measure the size of the treatment effect. %3D b. Assuming that the sample standard deviation is s = 20, compute r and the estimated Cohen's d to measure the size of the treatment effect. c. Comparing your answers from parts a and b, how does the variability of the scores in the sample influence the measures of effect size?
18. A random sample of n = 16 scores is obtained from a population with a mean ofu = 45. After a treatment is administered to the individuals in the sample, the sample mean is found to be M = 49.2. a. Assuming that the sample standard deviation is s = 8, compute r and the estimated Cohen's d to measure the size of the treatment effect. %3D b. Assuming that the sample standard deviation is s = 20, compute r and the estimated Cohen's d to measure the size of the treatment effect. c. Comparing your answers from parts a and b, how does the variability of the scores in the sample influence the measures of effect size?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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