alysonmariefont

14.11.2020 • 

Mathematics

1. A statistics professor would like to test the effectiveness of his teaching. A random sample of n = 5
students is selected from his class, and these students are administered a standardized test on statistics. For
the general population of students, the mean on this standardized test is u = 10. Is there sufficient evidence
to conclude that this professor's students score better than average? The data are as follows:
Student
Test Score
I
Janet
Carolyn
Gared
Dianna
Lauren
15
10
5
7
10
a.
State the alternative hypothesis in words.

Ответ:

queendeon123

15.02.2021

Mathematics

---

By hypothesis, we know that one song costs $1.29
If they sold 2000 songs in one day, they made 2000 * 1.29 = 2580

So they made $2580 by selling 2000 songs.

Hope this helps! :)

---

0,0(0 оценок)