Mathematics, 15.06.2020 22:57 nina288
One study revealed that a child under the age of 10 watches television 4.5 hours per day. A group of families from a certain comunity would like to beleive that theri children watch television less than the national average. A random sample of 14 children from the community yielded a mean of 4.1 hours per day with standard deviation of 1.2. Test the appropriate hypothesis at the level of significance 0.01. Assume the viewing time is normally distributed and interpret your results.
Answers: 1
Mathematics, 21.06.2019 19:00
You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?
Answers: 1
Mathematics, 21.06.2019 19:40
The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.
Answers: 1
Mathematics, 22.06.2019 00:00
Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?
Answers: 2
One study revealed that a child under the age of 10 watches television 4.5 hours per day. A group of...
Mathematics, 16.04.2021 02:00
History, 16.04.2021 02:00
Mathematics, 16.04.2021 02:00
Mathematics, 16.04.2021 02:00
English, 16.04.2021 02:00
Mathematics, 16.04.2021 02:00
Mathematics, 16.04.2021 02:00
Biology, 16.04.2021 02:00
Mathematics, 16.04.2021 02:00