Quality Management 2017

A NALYZE

Characterization of the data distribution

Use the Excel spreadsheet

S TEP 2: B UILD AN HISTOGRAM OF YOUR DATA

 Understand the shape of your data distribution. Was it expected?

S TEP 3: P ERFORM A STATISTICAL TEST TO VERIFY THE NORMALITY OF YOUR DATA

 Graphical method : Henry line proposed

✓ Aligned points?  Yes: Hypothesis of a normal distribution

Intervals

Cumulative percentages

03/10/17

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