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

Question

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

Provide a five-number summary.

Compute the lower and upper limits.

Do the data contain any outliers?
SelectYes, the data contain outliersNo, the data do not contain outliers

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?
Select Yes, a transposition would have produced an outlier, and a review would have found it

No, a transposition would have produced an outlier but a review would not have found it

No, a transposition would not have produced an outlier

8,240 1,347 1,836 8,701 2,410 11,185 597 14,138 6,323 1,813 2,762 1,329 10,288 7,328 3,940 4,254 724 2,084 3,580 5,678 8,140

Explanation / Answer

lower and upper limits:

Yes, a transposition would have produced an outlier, and a review would have found it

option 3 is correct

smallest = 597 first quartile Q1= (n+1)/4 th value 1824.5 median=Q2= (n+1)/2th value 3940 third quartile=Q3= 3 (n+1)/4 th value 8190 largest= 14,138

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