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For a particular population a sample of n = 4 scores has an expected value of 10.  For the same population, a sample of n = 25 scores would have an expected value of ____.

A sample of n = 16 scores is selected from a population with M= 80 with s = 20.  On average, how much error would be expected between the sample mean and the population mean?

A professor is using a new teaching method that is supposed to decrease his students’ exam scores. A one-tailed t-test was used. The critical value is 2.75 and the obtained value is 3.23. Which of the following is correct?

A professor is using a new teaching method that is supposed to increase his students’ exam scores. A one-tailed t-test was used. The critical value is 2.75 and the obtained value is 3.23. Which of the following is correct?

What are the df values for a repeated measures ANOVA with four treatment conditions where n=12?

For a repeated-measures t-test, the researcher obtains an average mean difference of 8 with SS = 260 and a sample size of n = 9. What is the obtained test statistic?

Which of the following would involve a nominal scale of measurement?

Calculate the range for the scores in Group A Group A: 20, 100, 12, 79, 88, 35, 91, 43, 156Group B: 232, 78, 62, 33, 90, 21, 15, 67, 23

Students from Dr. Gallimore’s Psych 210 class took a very difficult exam. However, one student scored 100% one this difficult exam. What measure of central tendency should be used in this case and why?

How would you describe the mode of this data set?5, 6, 2, 3, 9, 0, 8, 3, 7, 5