Choose all that apply

Circle ALL the correct answers among nose provided. 1. A population has a mean of u = 45. Which of the following scores could cut off the bottom 20% of the population from the rest? (Select all that apply) a ) 49 b) 43 C) 41 d) 45 2. If you do not reject the null hypothesis, which of the following are accurate? (Select all that apply) a) A type I is error is possible. b ) A type II is error is possible. c) You have a significant finding d) You do not have a significant finding e) None of the above 3. If your obtained z-value is -1.50 and the critical value is +1.96, which of the following are accurate conclusions? (Select all that apply) a) You should reject the null hypothesis. b) You should not reject the null hypothesis. c) There is a significant effect. d) There is not a significant effect. e) None of the above Which of the following would increase the likelihood of finding a significant result? (Select all that apply) a) A larger difference between the sample mean and the population mean b) A larger sample size c) A larger effect size d) A larger standard deviation If you are collecting a sample from a population with a mean of u = 45 and standard deviation of o = 15, which sample size would have the smallest standard error? a) n = 5 b) n = 15 C) n = 25 d) n = 35 Jaclyn collected a sample (n=25) from a population with u = 20. The mean value for her sample was M = 28 and the z-score for the sample was z = 2. What was the standard error of the scores? a) OM = 1 b) OM = 2 C OM = 4 DJOM - 8