(Solution Library) Original process (µ = 28000 σ = 2400) WE MADE CHANGES TO THE PROCESS, then we sampled and found the following information (n = 30 and X̄ = 289000
Question: Original process ( µ = 28000 σ = 2400 ) WE MADE CHANGES TO THE PROCESS, then we sampled and found the following information ( n = 30 and \(\bar{X}\) = 289000 )
Perform a 1 tail Z hypothesis test at the 95% confidence ( 0.05 Alpha ) and determine if the changes we made were worth the effort.
Deliverable: Word Document 
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