We want to see if the workers on the day and night shifts differ significantly in their productivity levels. A sample of workers from both shifts was taken. 
a.State the null and alternative hypotheses.
b.Test the null hypothesis at the 5% level of significance.
Definitions:
Creativity
The ability to produce original and valuable ideas or things.
Neuropsychologists
Professionals specializing in studying the structure and function of the brain as they relate to specific psychological processes and behaviors.
Psychobiologists
Scientists who study the biological bases of behavior and mental states.
Behavioral Geneticists
Scientists who study the role of genetics in shaping behaviors, traits, and psychology.
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