{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ModelCheck - ˆ ij ij ij e y y =-Residuals Calculation...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Experiments with a Single Factor Model Adequacy Checking ModelCheck.ppt D.A. Schaub, Univ. of Florida
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
ANOVA Assumptions We are assuming a model of  Therefore residuals (errors) need to be Normally distributed Independent Mean = zero Constant, but unknown variance  σ 2 ij i ij y μ τ ε = + +
Background image of page 2
Residuals Examination The ANOVA assumptions will not hold  exactly, but we do need to know about  gross violations before confirming  model validity At a minimum we need to calculate  residuals And then run set validations
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ˆ ij ij ij e y y =-Residuals Calculation: Cotton Tensile Strength Example 9.8 ANOVA Validation Plots We need to create plots to validate our assumptions Normal Probability plot – will check for normally distributed residuals Residuals vs. Fitted Values – will check for constant variance Residuals vs. Run Order – will check for independence of the residuals Minitab will do all of these (See figure 3-4, p. 78)...
View Full Document

{[ snackBarMessage ]}

Page1 / 8

ModelCheck - ˆ ij ij ij e y y =-Residuals Calculation...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online