A manufacturer of light bulbs advertises that, on average, its long-life bulb will last more than 5100 hours. To test th

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A Manufacturer Of Light Bulbs Advertises That On Average Its Long Life Bulb Will Last More Than 5100 Hours To Test Th 1 (129.63 KiB) Viewed 46 times

A manufacturer of light bulbs advertises that, on average, its long-life bulb will last more than 5100 hours. To test this claim, a statistician took a random sample of 105 bulbs and measured the amount of time until each bulb burned out. The mean lifetime of the sample of bulbs is 5156 hours and has a standard deviation of 370 hours. Can we conclude with 96% confidence that the claim is true? Fill in the requested information below. A. The value of the standardized test statistic: Note: For the next part, your answer should use interval notation. An answer of the form (-∞, a) is expressed (-inf, a), an answer of the form (b, ∞) is expressed (b, inf), and an answer of the form (-∞, a) U (b, ∞) is expressed (-inf, a)U(b, inf). B. The rejection region for the standardized test statistic: C. The p-value is D. Your decision for the hypothesis test: A. Do Not Reject H₁. B. Reject Ho. OC. Do Not Reject Ho. D. Reject H₁.