![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 17.04.2021 17:10, rainbowsauxe
An article in Fire Technology investigated two different foam-expanding agents that can be used in the nozzles of fire fighting equipment. A random sample of five observation with an aqueous film-forming foam had a sample mean of 4.7 and a standard deviation of 0.6. A random sample of five observations with alcohol-type concentrates had a sample mean of 6.9 and a standard deviation of 0.8. Assume that both populations are well represented by normal distributions with the same standard deviations (as s1 = 0.6 is close to s2 = 0.8). Do the data support the claim that there are no differences in mean foam expansion?
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30, jose4197
It takes a total of 6 hours to fill up an inground backyard pool using a standard house. a function can represent this situation to represent the amount of water in the pool until it is full a function of time the hose is running. determine the domain for the function
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00, kadams3836
The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00, lucerogon7403
How can you construct perpendicular lines and prove theorems about perpendicular lines
Answers: 3
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30, Jordandenzel
Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m
Answers: 2
Do you know the correct answer?
An article in Fire Technology investigated two different foam-expanding agents that can be used in t...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/biologiya.png)
Biology, 20.10.2020 18:01
![Konu](/tpl/images/cats/mat.png)
Mathematics, 20.10.2020 18:01
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/ekonomika.png)
Business, 20.10.2020 18:01
![Konu](/tpl/images/cats/fizika.png)
Physics, 20.10.2020 18:01