Mathematics, 30.10.2019 03:31 kdawg203
You want to obtain a sample to estimate a population mean. based on previous evidence, you believe the population standard deviation is approximately σ = 34.5 . you would like to be 99% confident that your estimate is within 10 of the true population mean. how large of a sample size is required?
Answers: 3
Mathematics, 20.06.2019 18:04
Alocal concert promoter purchases 2 3/4 pages of ads. when one of the concerts is cancelled, the promoter cancels 1 5/8 pages of ads. how much advertising space is the concert promoter actually using?
Answers: 1
Mathematics, 21.06.2019 21:30
Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.
Answers: 1
Mathematics, 21.06.2019 22:30
There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?
Answers: 2
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