Mathematics, 27.05.2020 19:05 PONBallfordM89
Ron Blake, a personnel director, wants to study the accuracy level of his company's 70 secretaries. Historically, the number of word processing errors made each day by each secretary had been approximately normal with an average of eighteen, and a population standard deviation of four. Mr. Blake monitors a sample of fifteen randomly chosen secretaries today. What is the probability that the average number of errors per secretary is greater than 20
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 17:00
Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π
Answers: 1
Mathematics, 21.06.2019 20:50
The first side of a triangle measures 5 in less than the second side, the third side is 3 in more than the first side, and the perimeter is 17 in. how long is the third side? if s represents the length of the second side, which of the following represents the length of the third side? s-5 ws-2 s+ 3 next question ask for turn it in
Answers: 1
You know the right answer?
Ron Blake, a personnel director, wants to study the accuracy level of his company's 70 secretaries....
Questions
History, 12.12.2019 12:31
English, 12.12.2019 12:31
History, 12.12.2019 12:31
Mathematics, 12.12.2019 12:31
Mathematics, 12.12.2019 13:31
English, 12.12.2019 13:31
History, 12.12.2019 13:31
Biology, 12.12.2019 13:31
Social Studies, 12.12.2019 13:31
