Scenario:
Assuming the data below is from a randomly sampled population ofPsychology Major’s and the scores represent Self-Esteem. All majorshave a mean of µ=15 and standard deviation of ?=5.
Data:
10, 12, 18, 12, 15, 14, 11, 10, 14, 17, 15, 13,12
Instructions:
1. For the data above, calculate the mean, median, mode, range,sum of squares, variance, and standard deviation and put them intoan APA style table (If you use JASP, then you can copy the APAtable from the results).
10 points
2. Write out the hypotheses for testing self-esteem ofPsychology Majors and the All Majors are the same or different.This should be a one tailed test (are Psychology majors higher orlower – you decide), using an alpha ? =.05.
10 points
3. Calculate the z value for a hypothesis test. Report in APAyour findings (including the critical z value used to determine ifthere is a significant difference).
10 points
4. Is the z-score you calculatedstatistically significant? Explain your answer.
10 points
5. What do you conclude? Write a short summary of yourconclusions using the data from your analysis to support yourconclusions.
10 points
