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Toyotas manufactured in the 1990s have a mean lifetime of 22.6years,with a standard deviation of 3.1years.the distribution of their lifetime is not assumed to be
Toyotas manufactured in the 1990s have a mean lifetime of 22.6years,with a standard deviation of 3.1years.the distribution of their lifetime is not assumed to be symmetric.between what two life this does center's theorem guarantee that we will find at least 95%of the toyotas?
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