How do the measures of range, standard deviation, and variance of college freshman GPA and college senior GPA compare?

If you had to make an educated guess, based on your own real-life experience, what do you think the range of freshman GPAs would be?  What about the range of senior GPAs?  Do you think the range of one of the groups will be larger than the range of the other?  How come? Considering your predictions for the range, what would you predict about standard deviation?SPSS Analysis:  We have 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 set caculate , interquartiles, standard deviation, and variance Results:  Identify the primary goal of these analyses.  Report the results of this analysis and what these measures of dispersion tell you about the data.  How do these measures compare between the two groups?  What does this indicate?  Did the data support or refute your guess about the range of GPAs for freshman vs. seniors?Conclusions:  Write a brief paragraph that discusses and compares measures of range, standard deviation, and variance.  What do you know now about these measurement of GPA that you didn’t know last week, from just the measures of central tendency?  That is, what do knowing the range, SD, and variance add to your understanding of this data?  Does knowing the interquartiles (25th, 50th, 75th) help you understand the data better than just knowing the range?  Describe how.

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