![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 21.08.2019 02:00, joe7977
Aprogrammer plans to develop a new software system. in planning for the operating system he will use, he needs to estimate the percentage of computers that use a new operating systems. how many computers must be surveyed in order to be 90% confident that his estimate is in error by no more than four percentage points?
a) assume that nothing is known about the percentage of computers with new operating systems. n = ?
b) assume that a recent survey suggests that 99% of computers use a new operating system. n = ?
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30, apere655
Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30, fraven1819
:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?
Answers: 2
Do you know the correct answer?
Aprogrammer plans to develop a new software system. in planning for the operating system he will use...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 19:30
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 19:30
![Konu](/tpl/images/cats/fizika.png)
Physics, 14.04.2021 19:30
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 19:30
![Konu](/tpl/images/cats/mkx.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/en.png)
English, 14.04.2021 19:30