[Solution Library] U.S. Department of Labor In 2001, the U.S. Department of Labor reported the average hourly earnings for U.S. production workers to be
Question:
U.S.
Department of Labor
In 2001, the U.S. Department of Labor reported the average hourly earnings for U.S. production workers to be $14.32 per hour ( The World Almanac 2003). A sample of 75 production workers during 2003 showed a sample mean of $14.68 per hour.
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Assuming a population standard deviation σ = $1.45, determine if it can be concluded that an increase occurred in the mean hourly earnings since 2001. Use α = .05.
Deliverable: Word Document 
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