Chapter 4, Problem 33E

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

1. a) Would you describe this distribution as symmetric or skewed? Explain.
2. b) Are there any outliers? Explain.
3. c) Create a boxplot of these data.
4. d) Write a few sentences about the graduation rates.