A Sample of 20 Endangered Species Was Obtained and the Length

Multiple Choice

A sample of 20 endangered species was obtained and the length of time (in months) since being placed on the list was recorded for each species. The ordered data follow:
52, 54, 58, 59, 59, 60, 60, 63, 65, 66, 67, 68, 69, 73, 74, 77, 78, 79, 79, 98
Which value would need to be exceeded for a data point to be considered an outlier when using the 1.5 × IQR rule?

A) 75.5
B) 83.5
C) 91.5
D) 99.5