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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 6 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Composite honeycomb sandwich panels are widely used in various aerospace structural applications such as ribs, flaps, and rudders. The article “Core Crush Problem in Manufacturing of Composite Sandwich Structures: Mechanisms and Solutions” (Amer. Inst. of Aeronautics and Astronautics J., 2006: 901–907) fit a line to the following data on x = prepreg thickness (mm) and y = core crush (%)

a. Fit the simple linear regression model. What proportion of the observed variation in core crush can be attributed to the model relationship?
b. Construct a scatterplot. Does the plot suggest that a linear probabilistic relationship is appropriate?
c. Obtain the residuals and standardized residuals, and then construct residual plots. What do these plots suggest? What type of function should provide a better fit to the data than does a straight line?
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