elast
contestada

An instructor at an army base wants to know if a new program that teaches gun safety is effective. Which procedure would be the best method of evaluation?

a) Select two groups of recruits that are as alike as possible. Give one group the new gun safety program and give the standard program to the other group.

b) Select two groups of recruits that are as different as possible. Give both groups the gun safety program.

c) Select two groups of recruits that are as different as possible. Give one group the new gun safety program and give the standard program to the other group.

d) Select two groups that are as alike as possible. Give both groups the new gun safety program.

Respuesta :

Testing an hypothesis for the new program, the procedure would be the best method of evaluation is as follows:

a) Select two groups of recruits that are as alike as possible. Give one group the new gun safety program and give the standard program to the other group.

What are the hypothesis tested?

At the null hypothesis, it is tested if there has been no change, that is, the safety index of the new group has not increased considered to the safety of the older group:

[tex]H_0: s_N = S_O[/tex]

At the alternative hypothesis, it is tested if the index has increased, that is:

[tex]H_1: s_N > S_O[/tex]

For representative results, both samples should be as alike as possible, one given the new program, the other the standard, hence option a is correct.

More can be learned about an hypothesis test at https://brainly.com/question/26454209

#SPJ1

Otras preguntas