Find rue mean if intake is normal with a variance of value

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What sample size is needed to estimate with 95 persent confidence the mean intake of calcium within 20 units of the true mean if the intake is normal with a variance of 1900 units?

Reference no: EM13148298

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Find rue mean if intake is normal with a variance of value : What sample size is needed to estimate with 95 persent confidence the mean intake of calcium within 20 units of the true mean if the intake is normal with a variance of 1900 units?
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