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Estimate standard deviation of population of all television

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Reference no: EM13314407

A sample of 10 television tubes produced by a company showed a mean lifetime of 1200 hours and a standard deviation of 100 hours. Estimate (a) the mean, (b) the standard deviation of the population of all television tubes produced by this company.

How do we find the standard deviation.

Reference no: EM13314407

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