![subject](/tpl/images/cats/mat.png)
Mathematics, 06.08.2019 18:10 holman9308
Aprofessor believes the class he is teaching in the current semester is above the average of the classes he has taught. in order to test this hypothesis, he analyses the scores of midterm of all 120 students he teaches this semester. their average score of this exam is 82 out of 100, with a standard deviation of 12. the mean score of the midterm for all students that he has taught for the last thirty-two years is 78 out of 100, with a standard deviation of 15. use an alpha level of 0.01 for this analysis.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:50
Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:40
Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:00
Awindow has the shape of a rectangle with a semi circle at the top. find the approximate area of the window using the dimensions shown. 4ft by 8ft
Answers: 1
![question](/tpl/images/cats/mat.png)
You know the right answer?
Aprofessor believes the class he is teaching in the current semester is above the average of the cla...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 13.11.2019 10:31
![question](/tpl/images/cats/mat.png)
Mathematics, 13.11.2019 10:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.11.2019 10:31
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.11.2019 10:31
![question](/tpl/images/cats/mat.png)
Mathematics, 13.11.2019 10:31
![question](/tpl/images/cats/mat.png)
Mathematics, 13.11.2019 10:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.11.2019 10:31
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/es.png)
Spanish, 13.11.2019 10:31
![question](/tpl/images/cats/fizika.png)
Physics, 13.11.2019 11:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 13.11.2019 11:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 13.11.2019 11:31