Chapter 2. What is the True Mean?

  1. Richard Boddy and
  2. Gordon Smith

Published Online: 10 AUG 2009

DOI: 10.1002/9780470749296.ch2

Statistical Methods in Practice: for Scientists and Technologists

Statistical Methods in Practice: for Scientists and Technologists

How to Cite

Boddy, R. and Smith, G. (2009) What is the True Mean?, in Statistical Methods in Practice: for Scientists and Technologists, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9780470749296.ch2

Author Information

  1. Statistics for Industry, UK

Publication History

  1. Published Online: 10 AUG 2009
  2. Published Print: 14 AUG 2009

ISBN Information

Print ISBN: 9780470746646

Online ISBN: 9780470749296

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Keywords:

  • blob diagram (or dot plot) or histogram;
  • summary statistics - median and range;
  • presenting data;
  • histogram and scatter diagram benefits;
  • statistical methods in practice;
  • sample median;
  • measures of variability;
  • range and standard deviation;
  • relative standard deviation (RSD);
  • degrees of freedom

Summary

This chapter contains sections titled:

  • Introduction

  • Presenting data

  • Averages

  • Measures of variability

  • Relative standard deviation

  • Degrees of freedom

  • Confidence interval for the population mean

  • Sample sizes

  • How much moisture is in the raw material?

  • Problems