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Th evaluate the effect of a treatment, a sample is ob- fained from a population with a mean of u = 20, and the treatment is administered to the individuals in the sample. After treatment, the sample mean is found to be M = 21.3 with a variance of s = 9. a. Assuming that the sample consists of n = individuals, use a two-tailed hypothesis test with a = .05 to determine whether the treatment effect is significant and compute both Cohen's d and r to measure effect size. Are the data sufficient to conclude that the treatment has a significant effect using a two-tailed test with a = .05? b. Assuming that the sample consists of n viduals, repeat the test and compute both measures of effect size. 16 %3D 36 indi- c. Comparing your answers for parts a and b, how does the size of the sample influence the outcome of a hypothesis test and measures of effect size?

Th evaluate the effect of a treatment, a sample is ob- fained from a population with a mean of u = 20, and the treatment is administered to the individuals in the sample. After treatment, the sample mean is found to be M = 21.3 with a variance of s = 9. a. Assuming that the sample consists of n = individuals, use a two-tailed hypothesis test with a = .05 to determine whether the treatment effect is significant and compute both Cohen's d and r to measure effect size. Are the data sufficient to conclude that the treatment has a significant effect using a two-tailed test with a = .05? b. Assuming that the sample consists of n viduals, repeat the test and compute both measures of effect size. 16 %3D 36 indi- c. Comparing your answers for parts a and b, how does the size of the sample influence the outcome of a hypothesis test and measures of effect size?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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exam scores. 16. Tb evaluate the effect of a treatment, a sample is ob- tained from a population with a mean of u = 20, and the treatment is administered to the individuals in the sample. After treatment, the sample mean is found to be M = 21.3 with a variance of s = 9. a. Assuming that the sample consists of n = 16 individuals, use a two-tailed hypothesis test with a = .05 to determine whether the treatment effect is significant and compute both Cohen's d and to measure effect size. Are the data sufficient to conclude that the treatment has a significant effect using a two-tailed test with a = .05? b. Assuming that the sample consists of n = viduals, repeat the test and compute both measures of effect size. %3D 36 indi- c. Comparing your answers for parts a and b, how does the size of the sample influence the outcome of a hypothesis test and measures of effect size?
Transcribed Image Text:exam scores. 16. Tb evaluate the effect of a treatment, a sample is ob- tained from a population with a mean of u = 20, and the treatment is administered to the individuals in the sample. After treatment, the sample mean is found to be M = 21.3 with a variance of s = 9. a. Assuming that the sample consists of n = 16 individuals, use a two-tailed hypothesis test with a = .05 to determine whether the treatment effect is significant and compute both Cohen's d and to measure effect size. Are the data sufficient to conclude that the treatment has a significant effect using a two-tailed test with a = .05? b. Assuming that the sample consists of n = viduals, repeat the test and compute both measures of effect size. %3D 36 indi- c. Comparing your answers for parts a and b, how does the size of the sample influence the outcome of a hypothesis test and measures of effect size?
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