Mathematics, 18.03.2021 01:50 laywah4
Researchers are concerned about the impact of students working while they are enrolled in classes, and they would like to know if students work too much and therefore are spending less time on their classes than they should be. First, the researchers need to find out, on average, how many hours a week students are working. A survey of 50 students provides a sample mean of 7.1 hours worked with the standard deviation of 5 hours. What is a 95% confidence interval based on this sample
Answers: 2
Mathematics, 21.06.2019 22:00
What is the solution to the division problem below x3+x2-11x+4/x+4
Answers: 2
Mathematics, 21.06.2019 22:00
(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?
Answers: 3
Mathematics, 22.06.2019 02:30
Acable company claims that the average household pays $78 a month for a basic cable plan, but it could differ by as much as $20. write an absolute value inequality to determine the range of basic cable plan costs with this cable company. a. |x − 78| ≥ 20 b. |x − 20| ≥ 78 c. |x − 20| ≤ 78 d. |x − 78| ≤ 20
Answers: 1
Researchers are concerned about the impact of students working while they are enrolled in classes, a...
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