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Suppose that lifetimes of light bulbs produced by a certain company are normal random variables with mean 1000 hours and standard deviation 100 hours. Is this company correct when it claims that 95% of its light bulbs last at least 900 hours?
Statistics and Probability, Statistics
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Useby using we need write the answer download.file("http://www.openintro.org/stat/data/ames.RData", destfile = "ames.RData") load("ames.RData") area price I need how to Get a sample with a size of 100, and find the sampl ...
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