A Company claims that the mean lifetime of their product line of super fluorescent tubes is 1600 hou
Question: A Company claims that the mean lifetime of their product line of super fluorescent tubes is 1600 hours. You randomly sample and test 100 tubes from their warehouse and measure a mean lifetime of 1570 hours and a standard deviation of 120 hours. Do you have sufficient evidence to refute the company's claim at a 5% level of significance?
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Solution: The solution consists of 2 pages
Solution Format: Word Document![](/images/msword.png)
Solution Format: Word Document
![](/images/msword.png)