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A sample of 20 computer chips were tested for speed in a certain application. The...

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A sample of 20 computer chips were tested for speed in a certain application. The mean speed was x=495 megahertz, with a standard deviation of 10 megahertz. There was one outlier.Is it appropriate to use the methods of this section to construct a confidence interval for the mean speed of this chip?YesNo, because the sample size is too small and the sample does not indicate an approximately normal population.No, because we do not know the population standard deviation.No, because the standard deviation is too high.

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