FREE Commercial Statistical software
368 copies of one or more of these FORMALLY VALIDATED programs have been purchased by 144 companies, consultants, and institutions since 2001;
but they are now being given away FREE, including their VALIDATION REPORTS and access to WEBINARS ON HOW TO USE THE SOFTWARE (see descriptions and links, below).
Reliability Statistics Basics
Version 17 — This program applies to variables and attribute data. It can calculate… Sample size; %Confidence; %Reliability (= % In-specification); Normal Distribution K-factors; Stress/strength interference; Confidence limits on Cpk, Ppk, MTTF, and MTBF; Normal probability plots; Transformations to normality. Purchased by 70 companies since 2002, but now being given away FREE.
Click here to DOWNLOAD FREE PROGRAM
Click here to DOWNLOAD FREE VALIDATION REPORT
Click here to listen to a FREE WEBINAR ON HOW TO USE THIS PROGRAM (68 minutes long).
The password to listen to the recording of that webinar is: RSBasicsV17
Reliability Plotting
Version 13 — This program calculates %Reliability (= % In-specification) and %Confidence for all types of variable-data distributions, including data that is highly censored (i.e. incomplete) or is extremely non-normal and cannot be transformed to normality. A customizable printable test report is automatically generated. A new feature allows the user to see the shape of the chosen distribution (see image to the left of here). Additionally, drug or biologics expiration dating can now be estimated, typically resulting in longer shelf life than when estimated using curvi-linear or non-transformed linear methods. This program can be easily used to calculate Tolerance Limits for non-normal data. Purchased by 100 companies since 2001, but now being given away FREE.
Click here to DOWNLOAD FREE PROGRAM
Click here to DOWNLOAD FREE VALIDATION REPORT
A FREE WEBINAR is available on another page in this website, a webinar that explains the theory of reliability plotting and then demonstrates how to use this Reliability Plotting software. That webinar is titled “Process Capability for Extremely Non-Normal Data (using Reliability Plotting)”; it can be found at johnzorich.com/webinars (at the bottom of that page).
Normality Tests & Normality Transformations
Version 4 —This program determines if data is normally distributed or not. It provides 10 tests of normality and helps identify which transformation to normality is best. A customizable printable test report is automatically generated. Purchased by 42 companies since 2010, but now being given away FREE.
Click here to DOWNLOAD FREE PROGRAM
Click here to DOWNLOAD FREE VALIDATION REPORT
Click here to listen to a FREE WEBINAR ON HOW TO USE THIS PROGRAM (32 minutes long).
The password to listen to the recording of that webinar is: NTNTransV4
Variables Data SPC
Version 8 — This program creates the following control charts: XbarR, XbarS, XmR, 3-way. It assesses data normality and calculates Cp, Cpk, Pp, and Ppk based on the original data or on transformations chosen by the user. Purchased by 46 companies since 2007, but now being given away FREE.
Click here to DOWNLOAD FREE PROGRAM
Click here to DOWNLOAD FREE VALIDATION REPORT
Click here to listen to a FREE WEBINAR ON HOW TO USE THIS PROGRAM (43 minutes long).
The password to listen to the recording of that webinar is: VDSPControlV8
Count Data SPC
Version 4 — This program creates the following control charts: P, nP, U. It also creates a Pareto Chart of the failure types. Perfect for use in complying with CE-marking requirements for identification of “significant increase” in frequency of complaints. Purchased by 28 companies since 2004, but now being given away FREE.
Click here to DOWNLOAD FREE PROGRAM
Click here to DOWNLOAD FREE VALIDATION REPORT
Click here to listen to a FREE WEBINAR ON HOW TO USE THIS PROGRAM (26 minutes long).
The password to listen to the recording of that webinar is: CDSPControlV4
Statistical Analysis of Gages (Metrology)
Version 5 —This program performs calculations for the following studies: Gage R+R, Gage Correlation, Gage Bias, Gage Linearity, and calculates specification Guard Bands. Customizable printable test reports are automatically generated. Purchased by 28 companies since 2001, but now being given away FREE.
Click here to DOWNLOAD FREE PROGRAM
Click here to DOWNLOAD FREE VALIDATION REPORT
Click here to listen to a FREE WEBINAR ON HOW TO USE THIS PROGRAM (53 minutes long).
The password to listen to the recording of that webinar is: SAGagesV5
Power Curves for T-tests
Version 2 — This program creates the following power curves: Power vs. Sample Size, Power vs. Alternative Hypothesis; Power vs. Alpha; Power vs. Standard Deviation. Purchased by 25 companies since 2003, but now being given away FREE.
Click here to DOWNLOAD FREE PROGRAM
Click here to DOWNLOAD FREE VALIDATION REPORT
Click here to listen to a FREE WEBINAR ON HOW TO USE THIS PROGRAM (17 minutes long)
The password to listen to the recording of that webinar is: PCTTestsV2
C=0 Attribute Sampling plan
Version 4 — This program calculates the smallest C=0 sample size needed for a wide range of user-specified lot quality, LQL or AQL, as well as AOQL. Charts created are: Lot Size vs. Sample Size, Lot Size vs. Pass Rate, Lot Size vs. AOQ, and OC curve. Purchased by 18 companies since 2001, but now being given away FREE.
UPDATED 2025-01-24: The OC curve and some of its text have been modified.
Click here to DOWNLOAD FREE PROGRAM
Click here to DOWNLOAD FREE VALIDATION REPORT
Click here to listen to a FREE WEBINAR ON HOW TO USE THIS PROGRAM (14 minutes long)
The password to listen to the recording of that webinar is: ASPlanV4
MDD Plus Sampling Plan
Version 2 —This program calculates the smallest C=0 sample size needed for a limited range of user-specified lot quality. Charts created are: Lot Size vs. Sample Size, and OC curve. Purchased by 11 companies since 2009, but now being given away FREE.
UPDATED 2025-01-16: Some of the text on the OC curve has been modified.
Click here to DOWNLOAD FREE PROGRAM
Click here to DOWNLOAD FREE VALIDATION REPORT
Click here to listen to a FREE WEBINAR ON HOW TO USE THIS PROGRAM (14 minutes long)
The password to listen to the recording of that webinar is: MDDplusV2