A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. 
For the distribution of number of sales per hour, what is the interquartile range?
Definitions:
Reasonable Price
A price that is considered fair and appropriate for the goods or services offered, taking into account various factors like market conditions, costs, and value provided.
Sale of Goods
A transaction in which ownership of tangible personal property is transferred from one party to another for a price.
Warranty
A guarantee provided by a seller or manufacturer regarding the condition of its product and the commitment to repair or replace defective parts within a specified period.
Sale of Goods Act
A set of laws regulating the sale of goods, including the rights of buyers and sellers, typically governing aspects such as quality and ownership.
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