(Steps Shown) Life of Light Bulbs: A manufacturer claims that the mean lifetime of fluorescent bulbs is 1400 hours. A homeowner selects 25 bulbs and finds
Question: Life of Light Bulbs: A manufacturer claims that the mean lifetime of fluorescent bulbs is 1400 hours.
A homeowner selects 25 bulbs and finds the mean lifetime to be 1370 hours with a standard deviation of 80 hours. Test the manufacturer's claim at a = 0.05. Use p-value approach.
Deliverable: Word Document 
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