Download Six Sigma Quality Improvement with Minitab, Second Edition by G. Robin Henderson(auth.) PDF

By G. Robin Henderson(auth.)

This publication goals to allow readers to appreciate and enforce, through the generally used statistical software program package deal Minitab (Release 16), statistical equipment basic to the Six Sigma method of the continual development of goods, techniques and prone.

the second one version comprises the subsequent new fabric:

  • Pareto charts and Cause-and-Effect diagrams
  • Time-weighted keep an eye on charts cumulative sum (CUSUM) and exponentially weighted relocating normal (EWMA)
  • Multivariate keep an eye on charts
  • Acceptance sampling through attributes and variables (not supplied in unencumber 14)
  • Tests of organization utilizing the chi-square distribution
  • Logistic regression
  • Taguchi experimental designs

Chapter 1 advent (pages 1–11):
Chapter 2 facts show, precis and Manipulation (pages 13–62):
Chapter three Exploratory facts research, exhibit and precis of Multivariate info (pages 63–92):
Chapter four Statistical types (pages 93–139):
Chapter five keep an eye on Charts (pages 141–201):
Chapter 6 technique power research (pages 203–223):
Chapter 7 approach Experimentation with a unmarried issue (pages 225–302):
Chapter eight procedure Experimentation with or extra components (pages 303–389):
Chapter nine assessment of size tactics (pages 391–412):
Chapter 10 Regression and version construction (pages 413–458):
Chapter eleven studying extra and additional Minitab (pages 459–482):

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Additional info for Six Sigma Quality Improvement with Minitab, Second Edition

Sample text

33 Modified histogram of length of stay in hospital. 00 Descriptive Statistics for length of stay. 34 Specifying reference line positions for the data scale. One final facility covered in this section is that of being able to add reference lines corresponding to values on the horizontal scale. This is useful for giving a visual impression of how well a process is performing in terms of customer requirements. For example, suppose that a customer of the bottle manufacturer specifies that bottle weight should lie between 485 and 495 g.

05, so there is evidence of the presence of special cause variation affecting the corresponding mould. The rectangle superimposed on the display indicates a period during which weight oscillates rapidly. 10 Evidence of special cause variation – scenario 3. 11 Evidence of special cause variation – scenario 4. corresponding mould. The rectangle superimposed on the display indicates a period during which there is an absence of weight values close to the median weight represented by the reference line – typical when mixtures occur.

Note how the software names the two columns labelled Wk1 in the Excel spreadsheet as Wk1 and Wk1_1 in order to have unique Minitab column names. We are faced with the problem of having the first row containing the text values A and B and that therefore Minitab ‘sees’ the columns containing the numerical data we wish to analyse as text columns. This is indicated by C2-T, C3-T, C4-T etc. The first step in overcoming this is to highlight the entire first row of worksheet entries by clicking on the row number 1 at the left-hand side of the worksheet.

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