TASK DEFINITION: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
PROBLEM: Question: It allows to compare proportions of two independent samples the statistical test: 
 Options:  <1> From McNemar. <2> Of Snedecor. <3> Of the median. <4> Exact Fisher. <5> U of Mann-Whitney.

SOLUTION: 4

PROBLEM: Question: Ferrous oxide, known as wustite (FeO) is non-stoichiometric because it contains: 
 Options:  <1> Excess iron <2> Oxygen excess <3> Iron defect. <4> Oxygen defect. <5> Defect of iron and oxygen.

SOLUTION: 3

PROBLEM: Question: Relating components of human milk and immune system, it is FALSE that: 
 Options:  <1> Lactoferrin protects against infections due to its ability to bind iron. <2> The casein peptides have antimicrobial and immunostimulant activity. <3> Cytokines modulate the immune system in childhood. <4> Complex oligosaccharides can be false receptors for bacteria in the intestine. <5> Lysozyme degrades the cell walls of gram-negative organisms.

SOLUTION:
5