Hypotheses: In a brief paragraph, discuss your guesses about the outcomes of the study. If you had to make an educated guess, based on your own real-life experience, what do you think the mean (average) freshman GPA would be? What about the mean senior GPA? How do you think the medians and modes of freshman GPAs and senior GPAs would be likely to compare?
SPSS Analysis: We have some data from two hypothetical samples, that include GPAs for a group of freshmen and a group of seniors from a local college. Open the data file. Calculate the mean, median, and mode for the data in these datasets.
Results: Identify the primary goal of these analyses. Report the results of this analysis and what these measures of central tendency tell you about the data. How do the mean, median, and mode for freshmen differ, and what does this mean (in plain language)? How do the mean, median, and mode for seniors differ, and what does this mean (in plain language)? How do freshmen and seniors compare? What can you say with confidence based on these measures?
Conclusions: Write a brief paragraph that compares mean, median, and mode. Is one measure more useful than the others in representing either dataset? Why or why not?
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