# Study Guide for Statistical Process Control p.329

# 1. The basics of Statistical Process Control p.331

Inherent random variability vs. assignable cause
variability

### SPC in TQM p.331

Total Quality Management

Management Philosophy

Tools & Techniques

### Quality Measures: Attributes and Variables p.332

An Attribute associated with an
individual item is rated either defective or nondefective

A Variable associated with an individual item is a numerical
measurement:

ounces,
minutes, inches et cetera

### Attributes & Variables in
Manufacturing & Service p.334

# 2. Control Charts

Two
Sigma
and Three Sigma
Control Limits

Control Charts for Attributes p.335

p Chart for the defect proportion of an Attribute p.336

C Chart for the defect frequency of an Attribute p.339=

Skim for "why;" don't worry about "how."

Control Charts for Variables p.342

Range Chart ("R Chart") for the variability of a variable p.342'

Calculating control limits using the table on p.343

Mean Chart ("xbar Chart") for the average of a variable p.345

Using R Charts and xbar charts Together p.346

Control Chart Patterns p.347

This section gives the details for the discussion in "SPC in TQM"
p.331-332

Sample Size Determination p.350

Note that the size of a particular periodic sample is much smaller than
in Math 1070

# 3 Process Capability p.351

Process Capability Measures p.353

Process Capability Ratio Cp

Assumes that on average you're perfect

Calculation

Process Capability Index Cpk

Takes bias into account

Calculation

# 4. Advertisements for Software Packages p.355

Skip

# 5. Summary p.358

Keep this in mind when filling out your
sheet of notes for exam 2 & Final ;-)

On the exams you will
have to calculate several of the formulas on page 358-359 (but not c
chart limits).