Will give instant thumbs up On the basis of extensive tests, the yield point of a...
On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally distributed with o = 100. The composition of the bar has been slightly modified, but the modification is not believed to have affected either the normality or the value of o. (a) Assuming this to be the case, if a sample of 49 modified bars resulted in a sample average yield point of 8475 lb, compute a 90%...
On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally distributed with a = 100. The composition of the bar has been slightly modified, but the modification is not believed to have affected either the normality or the value of o. (a) Assuming this to be the case, if a sample of 36 modified bars resulted in a sample average yield point of 8417 lb, compute a 90%...
On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally distributed with σ = 100. The composition of the bar has been slightly modified, but the modification is not believed to have affected either the normality or the value of σ. (a) Assuming this to be the case, if a sample of 49 modified bars resulted in a sample average yield point of 8429 lb, compute a 90%...
PLEASE DO BOTH 1. + -/12 points By NO sh Touria=ા On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally distributed with a = 100. The composition of the bar has been slightly modified, but the modification is not believed to have affected either the normality or the value of 0. (a) Assuming this to be the case, if a sample of 25 modified bars resulted in...
Will give instant thumbs up, please show some work and equations if done in excel. An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging steel with commercial-purity steel of the same type. For m = 33 specimens, the sample average toughness was x = 64.1 for the high-purity steel, whereas for n = 38 specimens of commercial steel y = 58.6. Because the high-purity steel is more expensive, its use for a certain application can...