A courier company is reviewing their delivery times. The following descriptive statistics relates to this courier company. The mean time for package delivery is 5 hours, the first quartile is 4 hours, the third quartile is 17 hours. This means that 50% of deliveries take more than 5 hours?

Question

Quizplus · Accepted Answer

The statement is incorrect. The first quartile represents the 25th percentile, and the third quartile represents the 75th percentile. This means that 50% of deliveries fall between 4 and 17 hours (between the first and third quartiles), and the remaining 50% fall outside of this range. Therefore, we cannot conclude that 50% of deliveries take more than 5 hours.

A Courier Company Is Reviewing Their Delivery Times