Quality Quantitative Tools

Quality Quantitative Tools

1. Control Charts

   • Used to distinguish variations within a process
   • They may be
     • By Attributes
       • It shows us whether the product is accepted or not
         • They are easy to understand
     • By variables

2. Pareto Chart

   • It serves to prioritize the most important problems to hang on them the improvements to develop
   • It is assumed that resolving 80% of the causes is reduced by 20% of the effects

3. Histogram

   • Shows trend, variability or dispersion and shape of distribution.
   • Used when studying a variable keep going

4. Dispersion Chart

   • They are used to see how closely related the study variables are
   • It serves to determine the causes that are influencing is the dispersion of some quality feature

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