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A very large data set (N > 10,000) has a mean value of 335 units and...

A very large data set (N > 10,000) has a mean value of 335 units and a standard deviation of 10.5 units. Determine the range of values in which 90% of the data set should be found assuming normal probability density (find a in the equation xi = x' ± a).

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ivan, mcan ) 335 mean 335-Yi 2. (o 335 N-335) : Range

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