Hydrogen content is conjectured to be an important factor in porosity of aluminum alloy castings. The article
Question:
Hydrogen content is conjectured to be an important factor in porosity of aluminum alloy castings. The article “The S
Reduced Pressure Test as a Measuring Tool in the Evaluation of Porosity/Hydrogen Content in A1–7 Wt Pct Si-10 Vol Pct SiC(p) Metal Matrix Composite” (Metallurgical Trans., 1993: 1857–1868) gives the accompanying data on x content and y gas porosity for one particular measurement technique.
Minitab gives the following output in response to a Correlation command:
Correlation of Hydrcon and
a. Test at level .05 to see whether the population correlation coefficient differs from 0.
b. If a simple linear regression analysis had been carried out, what percentage of observed variation in porosity could be attributed to the model relationship?
Step by Step Answer:
Probability And Statistics For Engineering And The Sciences
ISBN: 9781133169345
8th Edition
Authors: Jay L Devore, Roger Ellsbury