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

8,576	1,401	1,910	9,057	2,508	11,641
621	14,138	6,581	1,887	2,874	1,383
10,708	7,628	4,100	4,428	754	2,170
3,726	5,910	8,472

a. Provide a five-number summary (in millions of dollars).

Smallest value
First quartile		(to 1 decimal)
Median
Third quartile		(to 1 decimal)
Largest value

b. Compute the lower and upper limits (in millions of dollars) (to 2 decimals). If required, enter negative values as negative numbers.

Lower limit
Upper limit