Mathematics, 16.07.2019 20:30 nancieabreu4491
Alast year survey conducted to 200 participants showed that the average cell phone bill for an individual user was $105 with a standard deviation $12. in order to estimate the population mean for this year, at 95% confidence and a margin of error not greater than $2, how much should the sample size be? use last year’s standard deviation as your planning standard deviation.
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 14:50
What is [tex] {7}^{98 + \sqrt{4} } - 3 \times (64 \div 2 + 4 - 36) \times a = a + 36[/tex]?
Answers: 3
Mathematics, 21.06.2019 17:00
The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.
Answers: 3
Mathematics, 21.06.2019 22:30
Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.
Answers: 2
Mathematics, 21.06.2019 23:00
Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.
Answers: 1
You know the right answer?
Alast year survey conducted to 200 participants showed that the average cell phone bill for an indiv...
Questions
Physics, 21.08.2019 19:20
Medicine, 21.08.2019 19:20
History, 21.08.2019 19:20
English, 21.08.2019 19:20
Mathematics, 21.08.2019 19:20
