# The mean yearly income for construction workers in New York

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Subject: Mathematics
Due on: 04/14/2023
Posted On: 04/14/2023 06:33 AM
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The mean yearly income for construction workers in New York has been calculated as \$78,000, with a range of \$74,000 to \$82,000.

a. If a confidence interval of 95% has been calculated with respect to this range and mean, what does that confidence interval tell us? (Hint: Definition of confidence interval)

b. In your opinion, is a confidence interval of 95% useful? Why or why not?

c. Use the empirical rule. Calculate the standard deviation.

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#### The mean yearly income for construction workers in New York

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