Analysing quantitative data Chapter 12 Analysing quantitative data

Figure 12.1 Defining the data type

Id Variable 1 Variable 2 Variable 3 Variable 4 Case 1 1 27 2 Case 2 19 24 Table 12.1 A simple data matrix

Figure 12.2 Bar graph Source: Adapted from Eurostat (2014) © European Communities, 2014. Reproduced with permission.

Figure 12.3 Bar graph (data reordered) Source: Adapted from Eurostat (2014) © European Communities, 2014. Reproduced with permission.

Figure 12.4 Histogram Source: Adapted from Harley-Davidson Inc. (2014)

Figure 12.5 Pictogram Source: Adapted from Harley-Davidson Inc. (2014)

Figure 12.6 Line graph Source: Adapted from Harley-Davidson Inc. (2014)

Box 12.8 Focus on research in the news – Pie chart Source: Article by Adam Palin. Financial Times 6 November 2014. Copyright © 2014 The Financial Times Ltd.

Figure 12.7 Distribution of values

Figure 12.8 Annotated box plot

Figure 12.9 Multiple bar graph

Figure 12.10 Percentage component bar graph

Figure 12.11 Stacked bar graph

Figure 12.12 Scatter graph

Figure 12.13 Annotated frequency polygon showing a normal distribution

Figure 12.14 Type I and Type II errors

Figure 12.15 Values of the correlation coefficient Source: Developed from earlier editions; Hair et al. (2006)