Exhibit 20.5.An accountant wants to know if the property taxes paid by clients that live in the city are different from those that live in the county.The property taxes paid by five clients from the city (1) and five clients from the county (2) are shown below (in dollars) . 
Refer to Exhibit 20.5.At the 5% significance level,the critical values are:
Definitions:
Voluntary Control
The ability to consciously regulate one's own thoughts, feelings, and actions.
Motor Development
The progression of muscle control, movement skills, and physical coordination in a person, often focusing on infants and young children.
Cephalocaudal
A pattern of growth in which development begins at the head and progresses downwards towards the feet.
Proximodistal
Describes a pattern of physical and psychological growth and development where development starts at the central part of the body and moves towards the outer parts.
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