Two coffee-vending machines are studied to determine whether they distribute the same amounts. Samples are taken and the number of ounces is recorded for each machine. 
What is the test statistic T?
Definitions:
Field Selector
A tool or feature that allows users to choose which fields or columns of data to display or operate on.
Query Design View
A graphical interface in database software that allows users to create queries by visually assembling them.
Field List
A compilation of fields available for a database or software application, used for organizing and selecting data attributes.
Sorting
The process of arranging data in a particular order or sequence, typically ascending or descending, based on one or more criteria.
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