Refer to the test scores in Exercise 4. a. Create a five-number summary. b. Create a boxplot.

Question:

Refer to the test scores in Exercise 4.
a. Create a five-number summary.
b. Create a boxplot.
c. The test score of 32 should have been identified as an outlier. Which of the three reasons for outliers given on page 139 do you think explains this outlier? Should the outlier be removed when a description of the test scores is presented? Explain your reasoning.