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Evidence supports the manufacturer claim

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State University uses thousands of fluorescent light bulbs each year. The brand of bulb it currently uses has a mean life of 600 hours. A competitor claims that its bulbs, which cost the same as the brand the university currently uses, has a mean life of more than 600 hours. The university has decided to purchase the new brand if, when tested, the evidence supports the manufacturer's claim at the .05 significance level. Suppose 100 bulbs were tested with the following results: x¯ = 627.5 hours, s = 100 hours. Conduct the test using α = .05

  • Hypothesis
  • Test Statistics
  • Rejection Region
  • Make a decision
  • Conclusion

If you could please solve this problem step by step, that would help me out tremendously.

Reference no: EM132495299

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