Annual sales, in millions of dollars for 21 pharmaceutical companies follow.

a. Provide a five-number summary.

b. Compute the lower and upper limits.

c. Do the data contain any outliers?

d. Johnson & Johnson’s sales are the largest on the list at $14,138 million. Suppose a data entry error (a transposition) had been made and the sales had been entered as $41,138 million. Would the method of detecting outliers in part (c) identify this problem and allow for correction of the data entry error?

e. Show a boxplot.

Transcribed Image Text:

8408 1374 1872 8879 2459 11413 608 14138 6452 1850 2818 1356 10498 7478 4019 434 739 2127 3653 5794 8305