Descriptive Statistics

This chapter introduces the style of the analysis system used with the software and begins with simple analysis for summarizing data in graph and table format. For the majority of examples, Excel is used followed by Minitab and reference is made to MegaStat for Excel. Excel calculations produce valu...

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Bibliographic Details
Published inStatistical Methods for Food Science pp. 44 - 90
Format Book Chapter
LanguageEnglish
Published Oxford, UK John Wiley & Sons Ltd 16.08.2013
Subjects
descriptive statistics
Excel
frequency table
graphical displays
uncertainty
Online AccessGet full text
ISBN9781118541647
1118541642
DOI10.1002/9781118541593.ch3

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Summary:This chapter introduces the style of the analysis system used with the software and begins with simple analysis for summarizing data in graph and table format. For the majority of examples, Excel is used followed by Minitab and reference is made to MegaStat for Excel. Excel calculations produce values with many decimal points. In most circumstances, these are excessive considering the preciseness with which the original data were measured. The descriptive statistics are methods used to summarise the characteristics of a sample, e.g. the average value, but which also includes displays with graphs (charts) and tables. Graphical displays in their basic form provide indications of how the sample data are distributed. This is also possible using table forms such as a frequency table. All types of measurement are subject to error sources, and the consequence is that there is a degree of doubt or uncertainty concerning the experimental results.
ISBN:9781118541647
1118541642
DOI:10.1002/9781118541593.ch3