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Let x represent the hemoglobin count (HC) in grams per 100 milliliters of whole blood. The...

Let x represent the hemoglobin count (HC) in grams per 100 milliliters of whole blood. The HC data below was gathered on 12 randomly selected healthy adult women. (Diagnostic Tests with Nursing Implications, Springhouse Corporation,1994 ).
19 14 23 20 15 19 21 16 18 18 16 21
Construct a 98% confidence interval to estimate the mean hemoglobin count of healthy adult women.
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