Question

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

8,508	1,274	1,972	8,779	2,359	11,513	508
14,138	6,452	1,850	2,718	1,256	10,398	7,378
4,019	4,441	739	2,227	3,753	5,694	8,305

(a)

Provide a five-number summary (in million dollars).

minimum  million dollars first quartile  million dollarsmedian  million dollarsthird quartile  million dollarsmaximum  million dollars

(b)

Compute the lower and upper limits (in million dollars).

lower limit  million dollarsupper limit  million dollars

(c)

Do the data contain any outliers?

---Select--- All Some None of the values are within the limits, therefore there are   ---Select--- many some no outliers.

(d)

The largest company on this list has sales of $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?

This number  ---Select--- would would not have shown up as an outlier.

(e)

Show a boxplot.

Answer 1