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A sample is selected from a population with A = 150. After a treatment is administered to the individuals, the sample mean is found to be X = 140 and the standard deviation is S= 9. If the sample has n = 18 scores, determine whether the sample is sufficient to conclude that the treatment has significant effect. Use a two tail test with a = 0.02. ( Assume the population is normally distributed)

A sample is selected from a population with A = 150. After a treatment is administered to the individuals, the sample mean is found to be X = 140 and the standard deviation is S= 9. If the sample has n = 18 scores, determine whether the sample is sufficient to conclude that the treatment has significant effect. Use a two tail test with a = 0.02. ( Assume the population is normally distributed)

MATLAB: An Introduction with Applications
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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Your conclusion about the claim. At 2% level of significance, I have enough evidence to conclude that this treatment A has no significant effect. B At 2% level of significance, I do not have enough evidence to conclude that this treatment has significant effect. At 2% level of significance, I have enough evidence to conclude that this treatment has significant effect.
Transcribed Image Text:Your conclusion about the claim. At 2% level of significance, I have enough evidence to conclude that this treatment A has no significant effect. B At 2% level of significance, I do not have enough evidence to conclude that this treatment has significant effect. At 2% level of significance, I have enough evidence to conclude that this treatment has significant effect.
A sample is selected from a population with A = 150. After a treatment is administered to the individuals, the sample mean is found to be X = 140 and the standard deviation is S= 9. If the sample has n = 18 scores, determine whether the sample is sufficient to conclude that the treatment has significant effect. Use a two tail test with a = 0.02. ( Assume the population is normally distributed)
Transcribed Image Text:A sample is selected from a population with A = 150. After a treatment is administered to the individuals, the sample mean is found to be X = 140 and the standard deviation is S= 9. If the sample has n = 18 scores, determine whether the sample is sufficient to conclude that the treatment has significant effect. Use a two tail test with a = 0.02. ( Assume the population is normally distributed)
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