A medical researcher is studying the relationship between pica and iron deficien

Question

A medical researcher is studying the relationship between pica and iron deficiency. He measures the hemoglobin levels in five of his patients, all of whom are adult males who have been diagnosed with pica. He wants to compare these levels to the population norms. Suppose the mean hemoglobin level in adult males is 15.6 gm/dl with a standard deviation of 1.6 gm/dl. The researcher compiles the following table, where the first column of values is the patient's hemoglobin level (Hb level), the second column describes the location of that hemoglobin level in the distribution of hemoglobir levels among adult males, and the third column contains the corresponding z-score of that patient's hemoglobin level. Fill in the missing values. Hb Level (gm/dl) Location Description z-score Patient 114.8one-half of a standard deviation below the mean-0.50 Patient 2 Patient 3 16.@w one-quarter of a standard deviation below the mean Patient 4 Patient 5 [ o 12.4 -2.00 -3.00 +1.00 10.8 one standard deviation above the mean Flash Player MAC 28,0,0,137 033.34.1 2 © 2013 2016 Aplia. All rights except as

Explanation / Answer

Patient 2

15.6-12.4 = 3.2 = 2*1.6

= 2 standard deviation below the mean

Patient 3

One quarter of a std deviation below mean

= 15.6 - (1.6/4) = 15.2

Z score = (15.6-15.2)/1.6 = 0.25

Patient 4

15.6-10.8 = 4.8 = 3*1.6

= 3 standard deviation below the mean

Patient 5

on standard deviation above the mean

= 15.6+1.6 = 17.2

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