Transcript Analyzing Data for Statistical Content

Determine
Objective
Receive
Data
Analyzing Data for Statistical Content
Cost
Benefit
Analysis
Is the data
a Sample?
No
Data represents a
Population
Use Models to
describe the
Population
Yes
Calculate
Descriptive
Statistics
(µ,,median, etc.)
Plot data in the
order it was
Obtained
Attempt to Find
patterns /
variations
Use Descriptive
Statistics
(Models, Monte Carlo) (Box Plots / Histograms)
Summarize
results & Draw
Conclusions
Is the data
Random?
No
STOP
Assuming Objective is to find
Random Variability
Is the Sample
representation of
the Population?
No
STOP
Yes
Yes
Is the
variable
discrete?
No
Data is
continuous
(variable)
Determine: % Conforming,
CP, and related capability
analysis
Compare
with
Specs
Depending on
Objective
Yes
Data is
discrete
(attribute)
Create
Probability
Plots
Use Models to
describe the
Sample
Construct Histogram
Determine Tolerance
Allowance
REPORT
(based on
analysis)