The company financial officer was interested in the average cost of PCs that had been purchased in the past six months. A random sample of the price of 10 computers was taken with the following results;
$3,250, $1,127, $2,995, $3,250, $3,445, $3,449, $1,482, $6,120, $3,009, $4,000

-What is the 90^th percentile?

Question

Quizplus · Accepted Answer

The 90th percentile is the value below which 90% of the data falls. When the data is ordered, the 90th percentile is the 9th value in the sorted list: $1,127, $1,482, $2,995, $3,009, $3,250, $3,250, $3,445, $3,449, $4,000, $6,120. The 9th value is $5,060.

The Company Financial Officer Was Interested in the Average Cost