It is customary to list the score categories in a frequency distribution from the highest down to the lowest. True 0 False Samples of n = 4 scores are selected from a population. If the distribution of sample means has a standard error a = 5 points, then the population from which the samples were obtained has a standard deviation of or = 20. False 0 True Question 27 2 pts A researcher is evaluating a treatment that is expected to increase scores. If a one-tailed test with a = .05 is used, then the critical region consists of z-scores less than -1.65. 0 False True