PDF Archive

Easily share your PDF documents with your contacts, on the Web and Social Networks.

Send a file File manager PDF Toolbox Search Help Contact



Chapter 8.pdf


Preview of PDF document chapter-8.pdf

Page 123120

Text preview


VIII. ANALYZE

BOK
vt.A.2

MEASURING RELATIONSHIPS/REGRESSION

Analyze
Analyze is presented in the following topic areas:

.
.
.
.

Measuring and modeling relationships between variables
Hypottresis testing
Failure mode and effects analysis (FMEA)
Additional analysis methods

Measuring and Modeling Relationships Between Variables
Measuring and modeling relationships between variables is reviewed in the
following topic areas:

.
.
.

Regression

Correlationcoefficient
Multivariate tools

Note that the authors have presented regression ahead of the correlation coefficient

for explanation

Regression
Simple linear regression and multiple linear regression will be discussed here. Note
that non-linear regression models will not be tested on the CSSBB exam, and will not
be desdribed here. The material on linear regression may be found in several
statistics books, including Triola (1994)24.

Simple Linear Regression Model
Consider the problem of predicting the test results (y) for students based upon an
input variable (x), the amount of preparation time in hours using the data presented
in Table 8.1. Please note that this is hypothetical data, and is not based on actual

resulb.

cssBB

2014

vm-2

O QUALITY COUNCIL OF INDIANA