![subject](/tpl/images/cats/mat.png)
Mathematics, 19.05.2020 22:15 donavancoulter712
A survey was conducted at two colleges. 500 students at College A participated in the study. The results indicated that on average, the students spent 15 hours per week doing online assignments and its standard deviation was 5 hours. At College B, 400 students participated in the study. The average hours they worked for online assignments was 20 with a standard deviation of 4 hours. Please test whether there is a true difference in the time students spent for online assignments between the two colleges (using a confidence level of 99%).
![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 19:00
You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:50
(x-5)1/2+5=2 what is possible solution of this equation
Answers: 1
![question](/tpl/images/cats/mat.png)
You know the right answer?
A survey was conducted at two colleges. 500 students at College A participated in the study. The res...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.02.2021 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.02.2021 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.02.2021 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.02.2021 01:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 09.02.2021 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.02.2021 01:00
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.02.2021 01:00
![question](/tpl/images/cats/istoriya.png)
History, 09.02.2021 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.02.2021 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.02.2021 01:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/es.png)
Spanish, 09.02.2021 01:00
![question](/tpl/images/cats/mat.png)