If the population standard deviation of the lifetime of

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If the population standard deviation of the lifetime of washing machines is estimated to be 900 hours, how large a sample must be taken in order to be 97% confident that the margin of error will not exceed 100 hours?

Reference no: EM13584666

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If the population standard deviation of the lifetime of : if the population standard deviation of the lifetime of washing machines is estimated to be 900 hours how large a
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