A sample is selected from a population with u = 80. After a treatment is administered to the individuals, the sample mean is found to be M = 75 and the variance is s2 = 100. a). If the sample has n = 4 scores, then calculate the estimated standard error and determine whether the sample is sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with a =.05. b). If the sample has n = 25 scores, then calculate the estimated standard error and determine whether the sample is sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with a =.05. c). Describe how increasing the size of the sample affects the standard error and the likelihood of rejecting the null hypothesis.

A sample is selected from a population with u = 80. After a treatment is administered to the individuals, the sample mean is found to be M = 75 and the variance is s2 = 100. a). If the sample has n = 4 scores, then calculate the estimated standard error and determine whether the sample is sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with a =.05. b). If the sample has n = 25 scores, then calculate the estimated standard error and determine whether the sample is sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with a =.05. c). Describe how increasing the size of the sample affects the standard error and the likelihood of rejecting the null hypothesis.

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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