Exercise 11

Section 5 Short Run SPC

Lesson S05-04

Text: Section 5 page 17 – Section 9 page 18

Duration: 29 minutes

Introduction to Exercise 11

Data were collected from 2 different parts produced with the same process. The sample size is 2. Part A: Nominal Value = 5.20 Part B: Nominal Value = 8.00 The data can be found in Exercise11.MTW and Exercise11.XLS.

a. Construct a DNOM Chart. Is the DNOM Chart appropriate for this data?

Solution / Discussion of Exercise 11 a

b. Conduct a Test of Equal Variances for the data from the 2 parts

Solution / Discussion of Exercise 11 b

c. Construct Standardized DNOM and Standardized S Charts.

Solution / Discussion of Exercise 11 c

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About Steven Wachs

Steven Wachs has 25 years of wide-ranging industry experience in both technical and management positions. Steve has worked as a statistician at Ford Motor Company where he has extensive experience in the development of statistical models, reliability analysis, designed experimentation, and statistical process control.