The registrar at Whitworth College has been asked to prepare a report about the graduate students. Among other things, she wants to analyze the ages of the students. She has taken a sample of 10 graduate students and has found the following ages:
32 22 24 27 27 33 28 23 24 21
a. Compute the range, interquartile range, and standard deviation for these data.
b. An earlier study showed that the mean age of graduate students in U.S. colleges and universities is 37.8 years. Based on your calculations in part a, what might you conclude about the age of students in Whitworth’s programs?