Cp Cpk and Pp Ppk Calculator Validation

Validate QI Macros Capability Metrics Using Ford Data

Ford has provided data for validating various calculations described in AIAG Manuals.

QI Macros calculations have been tested and validated against the Ford data.

Ford Test Specifications

Ford Cp Cpk Validation Data

Ford's Cp Cpk Expected Results

expected cp cpk pp ppk using ford sample data

 

Compare to QI Macros Histogram Results

Rbar - Subgroup size = 5

histogram using rbar

Pooled Standard Deviation Subgroup size = 5

histogram-pooled-standard-deviation


Why Choose QI Macros to Perform Capability Analysis and Draw Histograms?

affordable

Affordable

  • Only $249 USD - less with quantity discounts
  • No annual fees
  • Free Technical Support

easy to use

Easy to Use

  • Works Right in Excel
  • Calculates Cp Cpk Pp Ppk
  • Accurate Results Without Worry

proven and trusted

Proven and Trusted

  • 100,000 Users in 80 Countries
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