What is the conclusion of a test of level

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Almost two-thirds of iron in the body is found in hemoglobin, the protein in the red blood cells that carries oxygen to the tissues. Iron deficiency could lead to anemia, a condition characterized by less than the normal quantity of hemoglobin in the blood. The following data gives the hemoglobin values for 7 female patients at risk for anemia, before and after they followed a 3-month dietary iron intake program: Before After 11.4 12.3 12.5 13.6 10.6 13.7 9.7 10.3 12.5 14.3 12.8 13.9 11.7 12.8

a) Was the program efficient in increasing the hemogloblin level? Justify your answer using a test of hypothesis for H0: mu1= mu2 against H1: mu1< mu2 , where mu1 and mu2 are the average hemoglobin levels before and after the program, respectively. Use the level alpha=0.01

b) What is the conclusion of a test of level alpha=0.01, if we assume (incorreclty) that the hemoglobin level after the program is independent of the hemoglobin level before the program? Assume that the two populations are normally distributed with equal variances.

Reference no: EM13893023

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