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

1. Provide a five-number summary.
2. Compute the lower and upper limits.
3. Do the data contain any outliers?
4. Johnson & Johnsons 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?
5. Show a boxplot.

8,408 1,374 1,872 8,879 2,459 11,413 608 14,138 6,452 1,850 2,818 1,356 10,498 7,478 4,019 4,341 739 2,127 3,653 5,794 8.305