Salary Yardsticks

less than the original numbers because the outliers are removed. Therefore, there is less spread in the data. The interquartile range of the total cost per year decreased to 20045 while the interquartile range of the salary yardstick became 11900 after the removal of outliers. This means that the Q1 and Q3 value are closer to one another than before. This is attributed to the removal of the outliers which reduces the spread.
Then, a scatterplot was formed with the data (Figure 3). It was a crucial graph as it helped determine the outliers in the information (see Appendix D for the outlier chart). Some of these outliers were located in towns with really low population numbers (the average population for an American city or town is around 20000)

For instance, one of the main external variables that increases both tuition cost and salary yardstick is the career chosen (see Appendix H for a list of references). The reason this relationship is not a cause-and-effect is because a higher tuition cost does not necessarily cause a higher salary yardstick. If a new university was to open up and charge tuition costs higher than Massachusetts Institute of Technology and Harvard, that does not guarantee that their graduates will earn more money in their careers. The other factor, mentioned above, is more likely to affect the salary yardstick than the total cost per year. The specialized field of a graduate can increase both tuition cost and the salary yardstick because some fields earn more money than others. In addition, the extraneous variables are the location of the school, the experience opportunities, the family or social connections they have, and the support provided for any related certifications. The location of the school can affect the tuition costs because of the local economy which also influences the salary yardstick. If the local economy is suffering, there are fewer jobs offered so the tuition cost of the school will decrease in order to adjust and the salary yardstick will also decrease because businesses are not as willing to pay high salaries. The experience opportunities, such as schools with co-op, tend to be higher in tuition but the extra experience allows for graduates to find higher paying jobs as they have job experience (see Appendix H for