Psy 520 - Study guides, Class notes & Summaries

9.7 Define the sampling distribution of the mean. 9.8 Specify three important properties of the sampling distribution of the mean. 9.9 If we took a random sample of 35 subjects from some popula tion, the associated sampling distribution of the mean would have the following properties (true or false). 9.13 Given a sample size of 36, how large does the population standard deviation have to be in order for the standard error to be 9.14 (a) A random sample of size 144 is taken from the local popula...

Chapter 16, numbers 16.9, 16.10, 16.12 and 16.14 16.9 Given the aggression scores below for Outcome A of the sleep deprivation experiment, verify that, as suggested earlier, these mean differences shouldn’t be taken seriously by testing the null hypothesis at the .05 level of significance. Use the computation formulas for the various sums of squares and summarize results with an ANOVA table. ANOVA: Single Factor SUMMARY Groups Coun t Su m Averag e Varianc e zero 3 15 5 4 twe...

PSY 520 Topic 7 Exercises 19.9 Randomly selected records of 140 convicted criminals reveal that their crimes were committed on the following days of the week: (a) Using the .01 level of significance, test the null hypothesis that in the underlying population, crimes are equally likely to be committed on any day of the week. 1 Statistical Hypothesis: H0 = Psun = Pmon = Ptues = Pwed = Pthurs = Pfri = Psat = 7 H1 : H0 is false Decision Rule: Reject H0 at the 0.01 level of significance = x2 > 16...

13.6 It’s well established, we’ll assume, that lab rats require an average of 32 trials in a complex water maze before reaching a learning criterion of three consecutive errorless trials. To determine whether a mildly adverse stimulus has any effect on performance, a sample of seven lab rats were given a mild electrical shock just before each trial. 13.8 Assume that on average, healthy young adults dream 90 minutes each night, as inferred from a number of measures, including rapid eye moveme...

PSY 520 Topic 6 MANOVA PROJECT

PSY 520 Topic 7 Review Questions

PSY 520 Topic 8 Research Question Plan- Made a 100

PSY 520 Topic 5 Review Questions.

PSY 520 Topic 4 Review Question

PSY 520 Topic 6 Review Questions