Monday 12 June 2017

Suppose that you know that you are going to use a one-sample t-test because you are comparing your sample mean to the population mean. The government agency that you are trying to get funding from requires you to have a power of .80 using an alpha level of .01. What sample size would you need if you expected a small effect size (i.e. d = .20)?

Question 1 Suppose that you know that you are going to use a one-sample t-test because you are comparing your sample mean to the population mean. The government agency that you are trying to get funding from requires you to have a power of .80 using an alpha level of .01. What sample size would you need if you expected a small effect size (i.e. d = .20)?

Question 2 Suppose that you know that you are going to use a two-sample t-test. The government agency that you are trying to get funding from requires you to have a power of .60 using an alpha level of .05. What sample size would you need if you expected an effect size of .35?

Question 3 Suppose that you know that you are going to use a two-sample t-test. The government agency that you are trying to get funding from requires you to have a power of .60 using an alpha level of .05. What sample size would you need if you expected a large effect size (i.e. d = .70)?

Question 4 Suppose that you know that you are going to use a two-sample t-test because you are comparing your sample mean to the population mean. The government agency that you are trying to get funding from requires you to have a power of .80 using an alpha level of .01. What sample size would you need if you expected a small effect size (i.e. d = .30)?

Question 5 Suppose that you know that you are going to use a one-sample t-test because you are comparing your sample mean to the population mean. The government agency that you are trying to get funding from requires you to have a power of .60 using an alpha level of .05. What sample size would you need if you expected a large effect size (i.e. d = .60)

 

No comments:

Post a Comment