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Seven Old Statistical
Tools
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S.NO
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STATISTICAL
TOOLS
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PURPOSE
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1
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Check Sheet
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For systematic data gathering and registering to get clear view of
the facts
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2
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Histogram
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For showing a distribution of variable quantities or characteristics
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3
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Cause and Effect diagram
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For analysing potential causes for a given problem
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4
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Pareto diagram
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For finding out causes that account for more losses in quality
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5
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Stratification
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For analysing data by grouping it in different ways
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6
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Scatter diagram
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For depicting the relationships between two variables
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7
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Control charts
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For displaying data taken over time and their variations
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Check sheet
Histogram
Cause and Effect diagram
Pareto Diagram
Stratification
Scatter Diagram
Control Charts
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