A sample of n = 16 individuals is selected from a population with u = 30. After a treatment is administered to the individuals, the sample mean is found to be M = 33. If the sample variance is s = 16, then calculate the estimated standard error and that the treatment has a significant effect? Use a two-tailed test with a = .05. determine whether the sample is sufficient to conclude Answer: 52 = : estimated standard error = ;t= : df = What is the Criticial region: t=+ Do you reject or fail to reject the null hypothesis? the null hypothesis. QUESTION 6 A sample of n= 16 individuals is selected from a population with u = 30. After a treatment is administered to the individuals, the sample mean is found to be M = 33. If the sample variance is s = 64, 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.. s2 = : estimated standard error = ;t = ; df = What is the Criticial region: t=± Do you reject or fail to reject the null hypothesis? the null hypothesis.

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