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: Childhood disintegrative disorder is characterized by: 
 Options:  <1> A seemingly normal development during at least the first two years of life. <2> Present only in the female sex. <3> Do not affect the intellectual capacity of people who suffer from it. <4> Does not affect the communication skills of the person. <5> A developmental delay evident from birth.

SOLUTION: 1

PROBLEM: Question: If after establishing the confidence interval with respect to a difference between two independent means, we find that the zero value is not in the interval: 
 Options:  <1> We can not make any decision regarding the null hypothesis of equality of means. <2> We can not reject the null hypothesis of equality between population means. <3> We must reject the null hypothesis of equality between population means. <4> We accept the null hypothesis of equality between the population means. <5> We reject the alternative hypothesis of equality between population means.

SOLUTION: 3

PROBLEM: Question: If after 200 microliters of a 10-4 dilution (10 exp. -4) of a broth on an agar plate grows 100 colonies, the estimated number of colony forming units per mL of broth is: 
 Options:  <1> 0.2 x 104 <2> 2 x 106 <3> 5 x 104 <4> 5 x 105 <5> 5 x 106

SOLUTION:
5