In testing 
at the 5% significance level, a sample of size 20 is used. The rejection region is:
Definitions:
General Contractor
A person or company responsible for overseeing a construction project and hiring subcontractors to perform specific tasks.
Research Data
Information gathered during the research process, used as a basis for reasoning, discussion, or calculation.
Properly Documenting
The process of accurately recording or detailing information, events, or processes in a structured and retrievable manner.
Work Teams
Groups of individuals working together towards a common goal or project.
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