Mathematics, 06.10.2019 05:30 nothingworksoutforme
An engineer has designed a valve that will regulate water pressure on an automobile engine. the valve was tested on 150 engines and the mean pressure was 7.7 lbs/square inch. assume the standard deviation is known to be 0.5. if the valve was designed to produce a mean pressure of 7.6 lbs/square inch, is there sufficient evidence at the 0.1 level that the valve does not perform to the specifications? state the null and alternative hypotheses for the above scenario.
Answers: 1
Mathematics, 21.06.2019 15:00
The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?
Answers: 1
Mathematics, 21.06.2019 19:00
Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?
Answers: 1
Mathematics, 21.06.2019 21:00
How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?
Answers: 3
Mathematics, 21.06.2019 21:50
Which rule describes the composition of transformations that maps ajkl to aj"k"l"? ro. 900 o to, -2(x, y) to, -20 ro, 900(x, y) ro, 9000 t-2. o(x,y) t-2, 00 ro, 900(x, y)
Answers: 2
An engineer has designed a valve that will regulate water pressure on an automobile engine. the valv...
Health, 20.09.2020 03:01
History, 20.09.2020 03:01
History, 20.09.2020 03:01
Mathematics, 20.09.2020 03:01
Mathematics, 20.09.2020 03:01
Mathematics, 20.09.2020 03:01
Geography, 20.09.2020 03:01
Chemistry, 20.09.2020 03:01
Chemistry, 20.09.2020 03:01
History, 20.09.2020 03:01
Mathematics, 20.09.2020 03:01