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(70 points) 4. A lighting manufacturer guarantees that the mean life of its popular halogen bulb is 750 hours. Light bul
Posted: Wed May 11, 2022 2:47 pm
by answerhappygod
- 70 Points 4 A Lighting Manufacturer Guarantees That The Mean Life Of Its Popular Halogen Bulb Is 750 Hours Light Bul 1 (98.02 KiB) Viewed 19 times
(70 points) 4. A lighting manufacturer guarantees that the mean life of its popular halogen bulb is 750 hours. Light bulb life follows a normal distribution. For a random sample of 36 halogen bulbs, the mean was 745 hours with a standard deviation of 60 hours. Conduct a hypothesis test of population mean equals 750 hours, u = 750 versus population mean is not 750 hours, u 750. Use level of significance, alpha = 0.02. Indicate the following parts of the solution: *Loss of points if use p-values* Hypotheses: HO: H1: Sample information: Risk: alpha = Decision rule analysis: Conclusion: