Stat 567: Statistical Reliability
Class Information
Fall 200

Cox's Semiparametric Proportional Hazards Model

Exam 2 (Due Thursday, November 9, 2000)

Weibull Regression with Nonconstant Sigma and Quadratic Term Using JMP 4 Nonlinear platform

JMP 4 Nelson's superalloy data file with Nonlinear Fit columns for assorted losses

Homework

JMP 4 Nonlinear Fit platform tutorial and homework

JMP 4 aircraft data file with Nonlinear Fit loss column for fitting exponential

JMP 4 cord data file with Nonlinear Fit columns for assorted losses

Exam 1 (Due Wednesday, October 11, 2000)

Class syllabus

Past exams

Data text files:

• Ball bearings
• Aircraft components
• Cord strengths
• Rats
• Vendors
• Appliance life
• Insulators
• Single fibers
• Bundle of fibers
• Tungsten carbide alloy
• Kevlar 49 fibers

(Instructions for importing a text file into JMP)

JMP handouts:

• Entering Data / Calculation of mean, variances, and standard deviations
• Calculation of Empirical Survivor Function
• Calculation of Q-Q Plots: Exponential, Weibull, and Lognormal
• Mixture of Populations
• Calculation of Kaplan Meier Product-Limit (PL) Estimator
• Comparing Populations
• Analyzing of Failure Data with Competing Risks
• Using JMP's Nonlinear Platform to Calculate MLEs: Exponential Case
• Using JMP's Nonlinear Platform to Calculate MLEs:
  Weibull/Gumbel Case
• Using JMP's Nonlinear Platform to Calculate MLEs:
  Lognormal / Normal Case
• Using JMP's Nonlinear Platform to Create Likelihood Contours: Weibull/Gumbel case
• Likelihood Ratio Confidence Interval for b10: Weibull Case
• Accelerated Life Model: Distribution Identification
• Accelerated Life Model: Lognormal Regression
• Accelerated Life Model: Lognormal Regression Using Nonlinear Fit JMP Platform
• Accelerated Life Model Check based on Survival Functions
• Accelerated Life Model Check Based on Quantiles
• Variance-Covariance Matrix for LogNormal Regression
• Accelerated Life Test Analysis
• Proportional Hazards Model Check
• Proportional Hazards Model Fit
• Proportional Odds Model Check
• Using Weibull Residuals
• Simple Weibull Regression Model I
• Simple Weibull Regression Model II

Accelerated Life Test Tutorials by Barry Eggleston

• Weibull Regression with Voltage and Temperature Stresses
• Using JMP's Nonlinear Fit Platform to do Weibull Regression with Voltage and Temperature Stresses
• Calculating Delta Method Confidence Intervals for Quantiles at Ambient Stress
• Analysis of Failure Data with Multiple Types of Censoring
• Likelihood Ratio Confidence Intervals for b10 using Multiple Censoring Type Data

Important Course Resources

• Bill Meeker's Reliability Course at Iowa State
• SLIDA SPlus Functions for Life Data Analysis

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