Mathematics, 03.11.2020 16:30 xavier1283
The average zinc concentrations recovered from a random sample of zinc measurements in 22 di erent locations was found to be 2.6 grams per milliliter. Assume that the variance for zinc measurements is known to be 0.09 grams per milliliter squared. Calculate and interpret a 90% con dence interval for the overall average zinc concentration.
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The average zinc concentrations recovered from a random sample of zinc measurements in 22 di erent l...
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