Basic Tools for Process Improvement
Basic Tools for Process Improvement
Basic Tools for Process Improvement
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<strong>Basic</strong> <strong>Tools</strong> <strong>for</strong> <strong>Process</strong> <strong>Improvement</strong><br />
WORKSHEET<br />
Step 3 - Compute the range <strong>for</strong> the data set<br />
Largest value = _______________<br />
Smallest value = _______________<br />
________________________________________<br />
Range of values = _______________<br />
HISTOGRAM VIEWGRAPH 19<br />
WORKSHEET<br />
Step 4 - Determine the number of intervals<br />
IF YOU HAVE THIS<br />
MANY DATA POINTS<br />
Less than 50<br />
50 to 99<br />
100 to 250<br />
More than 250<br />
USE THIS NUMBER<br />
OF INTERVALS:<br />
5 to 7 intervals<br />
6 to 10 intervals<br />
7 to 12 intervals<br />
10 to 20 intervals<br />
HISTOGRAM VIEWGRAPH 20<br />
22 HISTOGRAM
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