![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 13.11.2019 02:31, alex9473
The developer of a new welding rod claims that spot welds using his product will have greater strength than conventional welds. for 45 welds using the new rod, the average tensile strength is 23,500 pounds per square inch, with a standard deviation of 600 pounds. for 40 conventional welds on the same materials, the average tensile strength is 23,140 pounds per square inch, with a standard deviation of 750 pounds. using the 0.01 level, what is the calculated value of t statistic? (specify your answer to the 3rd decimal.)
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30, pillgiing
Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?
Answers: 1
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00, meg7211
There are 3232 forwards and 8080 guards in leo's basketball league. leo must include all players on a team and wants each team to have the same number of forwards and the same number of guards. if leo creates the greatest number of teams possible, how many guards will be on each team?
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00, benwill0702
The sum of 5consecutive even numbers is 100. what is the first number in this sequence?
Answers: 1
Do you know the correct answer?
The developer of a new welding rod claims that spot welds using his product will have greater streng...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 02.09.2019 10:30
![Konu](/tpl/images/cats/en.png)
English, 02.09.2019 10:30
![Konu](/tpl/images/cats/fizika.png)
Physics, 02.09.2019 10:30
![Konu](/tpl/images/cats/istoriya.png)
History, 02.09.2019 10:30
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 02.09.2019 10:30
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 02.09.2019 10:30
![Konu](/tpl/images/cats/health.png)
Health, 02.09.2019 10:30