Question: An engineering psychologist is interested in whether an increase in environmental lighting will increase worker productivity from the current standard of 20 units per hour.Thirty-one

An engineering psychologist is interested in whether an increase in environmental lighting will increase worker productivity from the current standard of 20 units per hour.Thirty-one (31) different workers were tested under the new lighting conditions and they produced at a rate of 19.1 units per hour (standard deviation = 4.3).Determine if the workers produced at a statistically different rate.

What would the null hypothesis be for this experiment?

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