LED, Inc. manufactures and sells LED light bulbs, which they guarantee will last at least 2,000 hours of continuous use.

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LED, Inc. manufactures and sells LED light bulbs, which they guarantee will last at least 2,000 hours of continuous use.

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Led Inc Manufactures And Sells Led Light Bulbs Which They Guarantee Will Last At Least 2 000 Hours Of Continuous Use 1
Led Inc Manufactures And Sells Led Light Bulbs Which They Guarantee Will Last At Least 2 000 Hours Of Continuous Use 1 (38.42 KiB) Viewed 27 times
LED, Inc. manufactures and sells LED light bulbs, which they guarantee will last at least 2,000 hours of continuous use. LED's engineers randomly select 16 bulbs, plug them in, and record the amount of time they are on before burning out. They find out that the sample mean is 1988 hours with a standard deviation of 32 hours. You can assume the population time before burning out is normally distributed. Suppose the company wants to test the following hypotheses: Ho: μ>2,000 vs H₁:μ <2,000. What distribution would you use to look up the p-value for this set of hypothesis? OZ t(23) t(15) t(32)
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