![subject](/tpl/images/cats/mat.png)
Mathematics, 15.05.2021 18:10 andrewbao999
PRETTY PLEASE HELP!!
A mathematics software company claimed that their software could increase student performance in Algebra 2 by 30 points. In a random sample of 25 students who used the software, the average was 21 points, and had a standard deviation of 12 points. What is the z-value? Do we accept or reject the claim based on the z-value? Explain. *
Your answer
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:00
Which statement is always true? a. square bcdf is a rectangle. b. rectangle gjkm is a square. c. quadrilateral stpr is a trapezoid. d. parallelogram abcd is a rhombus.
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
On average a herd of elephants travels 10 miles in 12 hours you can use that information to answer different questions drag each expression to show which is answers
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
The sum of 5consecutive even numbers is 100. what is the first number in this sequence?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00
Which graph shows the solution to the system of linear inequalities? y-4t< 4 y
Answers: 1
You know the right answer?
PRETTY PLEASE HELP!!
A mathematics software company claimed that their software could increase stud...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.05.2021 20:20
![question](/tpl/images/cats/en.png)
English, 04.05.2021 20:20
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 04.05.2021 20:20
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.05.2021 20:20
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.05.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 04.05.2021 20:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.05.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 04.05.2021 20:20
![question](/tpl/images/cats/fr.png)
French, 04.05.2021 20:20
![question](/tpl/images/cats/mkx.png)
Arts, 04.05.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 04.05.2021 20:20