romanlittlewood
22.03.2021 •
Mathematics
An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure of 4.9 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 140 engines and the mean pressure was 5.0 pounds/square inch. Assume the standard deviation is known to be 0.9. A level of significance of 0.1 will be used. Make a decision to reject or fail to reject the null hypothesis.
Solved
Show answers
More tips
- A Animals and plants Man s Best Friend: Which Dog Breed Is the Most Friendly?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
- G Goods and services How to Choose the Right High Chair for Your Baby?...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
- S Style and Beauty How to braid friendship bracelets?...
Answers on questions: Mathematics
- M Mathematics The number of frogs in a certain lake is inversely related to the number of snakes in the lake. if x represents the number of snakes in the lake, then y = 100/x represents...
- M Mathematics In a choir, the ratio of boys to girls is 5 to 6. There are 10 boys in the choir. What is the total number of boys and girls in the choir?...
- M Mathematics Give me the answers pls...
- M Mathematics What is the equation of the line that passes through the point ( − 6 , − 6 ) (−6,−6) and has a slope of 2 3 3 2 ?...
- G Geography Although ozone in the stratosphere has been decreasing in recent years, ozone near earth s surface is on the increase. the ozone near the surface is undesirable because it:...
- M Mathematics What percent s falls between 0.5 and 0.6...
Ответ:
im ah dum ah u r
Ответ:
In the first part, the car covered 490 km in 7 hours, but I think you mistyped the second part (“then covers a speed of 90km”) and a critical piece is missing to find the total distance and time.