effects of an iron supplement in increasing hemoglobin levels is being clinically tested on a group of 160 patients suffering from anemia (low iron). Combined with a specific dietary plan, those using the supplement experienced an average hemoglobin increase of 6.8 g/dL. It is known from previous clinical trials that the standard deviation of the increase in hemoglobin levels as a result of using the supplement is 2.9 g/dL. Calculate the margin of error and construct the 99% confidence interval for the true mean hemoglobin-level increase caused by the supplement. 1.  E=  Round to 3 significant digits   2. ______ < μ <_____ g/dL   Round to 2 decimal places

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The effects of an iron supplement in increasing hemoglobin levels is being clinically tested on a group of 160 patients suffering from anemia (low iron). Combined with a specific dietary plan, those using the supplement experienced an average hemoglobin increase of 6.8 g/dL. It is known from previous clinical trials that the standard deviation of the increase in hemoglobin levels as a result of using the supplement is 2.9 g/dL. Calculate the margin of error and construct the 99% confidence interval for the true mean hemoglobin-level increase caused by the supplement.
1.  E= 
Round to 3 significant digits

 
2. ______ < μ <_____ g/dL
 
Round to 2 decimal places
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