Evaluate 
without using a calculator.
Definitions:
Population Proportions
The ratio of a particular group within a population to the entire population.
Worker Safety
This term refers to the protocols, practices, and measures implemented to ensure the physical and psychological welfare of workers in their workplace.
OSHA
The Occupational Safety and Health Administration is an agency of the U.S. government tasked with maintaining safe and healthy conditions in workplaces.
Two-tail Test
A statistical hypothesis test in which the critical area of a distribution is two-sided and tests whether a sample is greater or less than a range of values.
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