Graduation?
A survey of major universities asked what percentage of incoming freshmen usually graduate "on time" in 4 years. Use the summary statistics given to answer the questions that follow.
|
|
% on Time
|
|
Count
|
48
|
|
Mean
|
68.35
|
|
Median
|
69.90
|
|
StdDev
|
10.20
|
|
Min
|
43.20
|
|
Max
|
87.40
|
|
Range
|
44.20
|
|
25th %tile
|
59.15
|
|
75th %tile
|
74.75
|
a) Would you describe this distribution as symmetric or skewed? Explain.
b) Are there any outliers? Explain.
c) Create a boxplot of these data.
d) Write a few sentences about the graduation rates.