The following data represent the wait time, in minutes, for customers calling Dell technical support. 
(See the Excel Data File.) The interquartile range is ________.
Definitions:
Sampling Distribution
A statistical distribution that outlines the probabilities of a certain statistic coming from a random sample.
Baggage Checked
The process of handing over passenger luggage to an airline or transportation provider for transport in the cargo area of a plane or vehicle.
Standard Deviation
A measure that quantifies the amount of variation or dispersion of a set of data values from their mean.
Sampling Distribution
The probability distribution of a statistic based on a random sample.
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