![subject](/tpl/images/cats/mat.png)
Mathematics, 18.10.2019 04:20 sophiaa23
Air crew escape systems are powered by a solid propellant. the burning rate of this propellant is an important product characteristic. specifications require that the mean burning rate must be 50 centimeters per second. the experimenter selects a random sample of n=40 and obtains an observed sample mean of the burning rate 51.3 centimeters per second and an observed sample standard deviation of the burning rate 2.0 centimeters per second. based on a 5% type i error threshold, construct a hypothesis test and draw your conclusion.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00
Need on this geometry question. explain how you did it.
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30
Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)
Answers: 1
You know the right answer?
Air crew escape systems are powered by a solid propellant. the burning rate of this propellant is an...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 30.03.2020 21:22
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 21:22
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 30.03.2020 21:22
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 21:22
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 21:22
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 30.03.2020 21:22
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 30.03.2020 21:22
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 21:22
![question](/tpl/images/cats/istoriya.png)
History, 30.03.2020 21:22
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.03.2020 21:22