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.)
Answers: 2
Mathematics, 21.06.2019 20:30
Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error
Answers: 1
Mathematics, 21.06.2019 21:00
If there are 3.281 feet in 1 meter, how many inches are in one centimeter
Answers: 1
The developer of a new welding rod claims that spot welds using his product will have greater streng...
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