![subject](/tpl/images/cats/mat.png)
Mathematics, 09.10.2019 17:10 JvGaming2001
Question 1
select one answer.
10 points
a teacher is experimenting with a new computer-based instruction and conducts a study to test its effectiveness. in which situation could the teacher use the two-sample t-test for comparing two population means?
the teacher gives each student in the class a pretest. then she teaches a lesson using a computer program. afterwards, she gives each student a post-test. the teacher wants to compare test scores for each student to see whether the data will show an improvement.
the teacher randomly divides the class into two groups. one of the groups receives computer-based instruction and the other group receives traditional instruction without computers. after instruction, each student takes a test and the teacher wants to compare the test scores of the two groups.
the teacher uses a combination of traditional methods and computer-based instruction. she asks students which they liked better. she wants to determine if the majority prefer the computer-based instruction.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:00, zahradawkins2007
In a circle, a 45° sector has an area of 32π cm2. what is the radius of this circle? 32 cm 12 cm 16 cm 8 cm
Answers: 3
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:30, neilaamusic6966
When only separate discreet points are graphed it is called?
Answers: 3
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:10, ansonferns983
Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.
Answers: 1
You know the right answer?
Question 1
select one answer.
10 points
a teacher is experimenti...
select one answer.
10 points
a teacher is experimenti...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 22.12.2020 03:30
![Konu](/tpl/images/cats/mkx.png)
Arts, 22.12.2020 03:30
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 22.12.2020 03:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 22.12.2020 03:30
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mkx.png)
Arts, 22.12.2020 03:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 22.12.2020 03:30