Alumni donations are an important source of revenue for colleges and universities. If admin- isffators could determine the factors that could lead to increases in the percentage of alumni who make a donation, they might be able to implement policies that could lead to increased revenues. Research shows that students who are more satisfied with their contact with teachers are more Likely to graduate. As a result, one might suspect that smaller class sizes and lower stu- dent/faculty ratios-might lead to a higher percentage of satisfied graduates, which in tum might lead to incieases in the percentage of alumni who make a donation. The following table shows
data for 4g national universities. The Graduation Rate column is the percentage of students who initially enrolled at the university and graduated. The % of Classes Under 20 column shows the p”r””rrug”, of classes offered with fewer than 20 students. The Student/Faculty Ratio column L the number of students enrolled divided by the total number of faculty’ Finally, the Alumni Giving Rate column is the percentage of alumni who made a donation to the universify’
Based on the data provided please complete the following:
1. Use methods of descriptive statistics to summarize the data.
2. Develop an estimated simple linear regression model that can be used to predict the alumni giving rate , given the graduation rate. Discuss your findings.
3. Develop an estimated multiple linear regression model that could be used to predict the alumni giving rate using the graduation rate , % of classes under 20 and student/ faculty ratio as independent variables . Discuss your findings
4.Based on the results in part 2 and 3 , do you believe another regression model maybe more appropriate ? Estimate this model and discuss your results
5. What conclusions and recommendations can you derive from your analysis?What universities are achieving a substantially higher alumni giving rate than would be expected ,given their graduation rate , % of classes under 20 , and student/faculty ratio ? What universities are achieving a substantially lower alumni giving rate than would be expected ,given their graduation rate , % of class under 20, and student/faculty ratio?What other independent variables could be included in the model ?
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