John N. Zorich
John N. Zorich
John Zorich has spent 35 years in the medical device manufacturing industry; the first 20 years were as a “regular” employee in the areas of R&D, Manufacturing, QA/QC, and Regulatory; the last 15 years were as consultant in the areas of QA/QC and Statistics. His consulting clients in the area of statistics have included numerous start-ups as well as large corporations such as Boston Scientific, Novellus, and Siemens Medical. His experience as an instructor in statistics includes having given 3-day workshop/seminars for the past several years at Ohlone College (San Jose CA), 1-day training workshops in SPC for Silicon Valley Polytechnic Institute (San Jose CA) for several years, several 3-day courses for ASQ Biomedical, numerous seminars at ASQ meetings and conferences, and half-day seminars for numerous private clients. He creates and sells formally-validated statistical application spreadsheets that have been purchased by more than 75 companies, world-wide.
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Statistical Power – Understanding, Calculating, and How to Effectively Use it
Statistical power is an indicator of the ability of a test of significance to “detect” a practical difference (e.g., between the averages of two products that are being compared). A low power typically means that the sample sizes in... -
Statistical Process Control (SPC)
All companies want to improve the quality of their products. Attempts to improve product quality need to be structured in such a way that they have a reasonable chance of success and the cost/benefit ratio is appropriate. The most... -
Statistical Justification for Sample Size and the Use of Only 3 Lots for Process Validation
Almost all manufacturing and development companies perform at least some process validation studies, but it is difficult to decide how many Lots to include in the study and how large the Sample per Lot should be. This webinar provides... -
Metrology – Statistical Analysis of Measurement Uncertainty
The seminar begins with an examination of the fundamental vocabulary and concepts related to metrology. Topics include: accuracy, precision, calibration, and “uncertainty ratios”. Several of the standard methods for analyzing measurement variation are then described and explained, as derived... -
Better Alternatives to AQL Sampling Plans for Risk Management in Incoming QC
The seminar begins with an examination of ISO and FDA regulations and guidelines regarding the use of statistics, especially in regards to Sampling Plans. The pros and cons of the 2 most widely used sampling plans (ANSI Z1.4, and... -
Valid Statistical Rationales for Sample Sizes
This webinar explains the logic behind sample-size choice for several statistical methods that are commonly used in verification or validation efforts, and how to express a valid statistical justification for a chosen sample size. Almost all manufacturing and development... -
Process Capability Analysis using Confidence or Reliability Calculations
Testing and/or inspections to determine whether or not a product or a lot is acceptable vs. design or QC specifications are performed by all manufacturing and development companies. These test/inspections may happen during design verification/validation or during incoming or... -
Sale!
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Valid Statistical Rationales for Sample Sizes
This webinar explains the logic behind sample-size choice for several statistical methods that are commonly used in verification or validation efforts, and how to express a valid statistical justification for a chosen sample size. Almost all manufacturing and development... -
Sale!
Valid Statistical Rationales for Sample Sizes
Almost all manufacturing and development companies perform at least some verification testing or validation studies of design-outputs and/or manufacturing processes, but it is sometimes difficult to explain the rationale for the sample sizes used in such efforts. This webinar... -
Sale!
Metrology: Statistical Analysis of Measurement Uncertainty
The seminar begins with an examination of the fundamental vocabulary and concepts related to metrology. Topics include: accuracy, precision, calibration, and “uncertainty ratios”. Several of the standard methods for analyzing measurement variation are then described and explained, as derived... -
Sale!
Statistical Process Control (SPC)
All companies want to improve the quality of their products. Attempts to improve product quality need to be structured in such a way that they have a reasonable chance of success and the cost/benefit ratio is appropriate. The most... -
Process Capability Analysis using Confidence or Reliability Calculations
All manufacturing and development companies perform testing and/or inspections that involve concluding whether or not a product or lot is acceptable vs. design or QC specifications. Such test/inspections may occur during design verification/validation or during incoming or final QC.... -
Statistical Process Control (SPC)
All companies want to improve the quality of their products. Attempts to improve product quality need to be structured in such a way that they have a reasonable chance of success and the cost/benefit ratio is appropriate. The most... -
Normality Tests and Normality Transformations
The calculations used in many statistical tests and methods require that the inputted data be “normally distributed”. Such calculations include those for t-Tests, ANOVA tables, F-tests, Tolerance limits, and Process Capability Indices. Unless the raw data used in such... -
Process Capability Analysis using Confidence/Reliability Calculations
All manufacturing and development companies perform testing and/or inspections that involve concluding whether or not a product or lot is acceptable vs. design or QC specifications. Such test/inspections may occur during design verification/validation or during incoming or final QC.... -
Better Alternatives to AQL Sampling Plans for Risk Management in Incoming QC
The seminar begins with an examination of ISO and FDA regulations and guidelines regarding the use of statistics, especially in regards to Sampling Plans. The pros and cons of the 2 most widely used sampling plans (ANSI Z1.4, and... -
Metrology: Statistical Analysis of Measurement Uncertainty
Description: The seminar begins with an examination of the fundamental vocabulary and concepts related to metrology. Topics include: accuracy, precision, calibration, and “uncertainty ratios”. Several of the standard methods for analyzing measurement variation are then described and explained, as... -
Statistical Process Control (SPC)
Description: All companies want to improve the quality of their products. Attempts to improve product quality need to be structured in such a way that they have a reasonable chance of success and the cost/benefit ratio is appropriate. The... -
Normality Tests and Normality Transformations
Description: The calculations used in many statistical tests and methods require that the inputted data be “normally distributed”. Such calculations include those for t-Tests, ANOVA tables, F-tests, Tolerance limits, and Process Capability Indices. Unless the raw data used in... -
Process Capability Analysis using Confidence/Reliability Calculations
Description: All manufacturing and development companies perform testing and/or inspections that involve concluding whether or not a product or lot is acceptable vs. design or QC specifications. Such test/inspections may occur during design verification/validation or during incoming or final... -
Statistical Process Control (SPC)
Description: All companies want to improve the quality of their products. Attempts to improve product quality need to be structured in such a way that they have a reasonable chance of success and the cost/benefit ratio is appropriate. The... -
Confidence / Reliability Calculations & Statistically Valid Sample Sizes
Description: All manufacturing and development companies perform testing and/or inspections that involve concluding whether or not a product or lot is acceptable vs. design or QC specifications. Such test/inspections may occur during design verification/validation or during incoming or final... -
Statistical Analysis of Gages
Description: The seminar begins with an examination of the fundamental vocabulary and concepts related to metrology. Topics include: accuracy, precision, calibration, and “uncertainty ratios”. Several of the standard methods for analyzing measurement variation are then described and explained, as... -
Statistical Process Control (SPC)
Description: All companies want to improve the quality of their products. Attempts to improve product quality need to be structured in such a way that they have a reasonable chance of success and the cost/benefit ratio is appropriate. The... -
Metrology: Statistical Analysis of Measurement Uncertainty
Description: The seminar begins with an examination of the fundamental vocabulary and concepts related to metrology. Topics include: accuracy, precision, calibration, and “uncertainty ratios”. Several of the standard methods for analyzing measurement variation are then described and explained, as... -
Statistical Process Control (SPC)
Description: All companies want to improve the quality of their products. Attempts to improve product quality need to be structured in such a way that they have a reasonable chance of success and the cost/benefit ratio is appropriate. The... -
Normality Tests and Normality Transformations
Description: The calculations used in many statistical tests and methods require that the inputted data be “normally distributed”. Such calculations include those for t-Tests, ANOVA tables, F-tests, Tolerance limits, and Process Capability Indices. Unless the raw data used in... -
Process Capability Analysis using Confidence/Reliability Calculations
Description: All manufacturing and development companies perform testing and/or inspections that involve concluding whether or not a product or lot is acceptable vs. design or QC specifications. Such test/inspections may occur during design verification/validation or during incoming or final... -
Statistical Process Control (SPC)
Description: All companies want to improve the quality of their products. Attempts to improve product quality need to be structured in such a way that they have a reasonable chance of success and the cost/benefit ratio is appropriate. The... -
Confidence / Reliability Calculations & Statistically Valid Sample Sizes
Description: All manufacturing and development companies perform testing and/or inspections that involve concluding whether or not a product or lot is acceptable vs. design or QC specifications. Such test/inspections may occur during design verification/validation or during incoming or final... -
Statistical Analysis of Gages
Description: The seminar begins with an examination of the fundamental vocabulary and concepts related to metrology. Topics include: accuracy, precision, calibration, and “uncertainty ratios”. Several of the standard methods for analyzing measurement variation are then described and explained, as... -
Statistical Process Control (SPC)
Description: All companies want to improve the quality of their products. Attempts to improve product quality need to be structured in such a way that they have a reasonable chance of success and the cost/benefit ratio is appropriate. The...
