# Average Hemoglobin Readings for Sample of Teachers

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The average hemoglobin reading for a sample of 35 teachers was 16gr/milliliters, with a sample standard deviation of 2 grams. Find the 99% confidence interval of the true population mean. Provide an interpretation of the interval.

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Solution. For a 99% confidence level, z=2.576. So, the 99% confidence interval of ...

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The solution determines the average hemoglobin readings for sample of teachers

$2.49