Glossary
What is statistical inference?
Introduction
Variables
Requirements of a basic report
1 a Research your context
b Select suitable data
2 Pose an appropriate question which is informed by contextual knowledge
3 Name the response variable and the explanatory variable, then justify your choice
4 State the purpose of your investigation and who would find it useful
5 Select and use appropriate displays
6 Identify features in the data
7 Fit a linear model
8 Describe the nature of the relationship
9 Describe the strength of the relationship
10 Use the model to make a prediction
11 Communicate findings in a conclusion
Putting it all together
Improving your report
A An in-depth look at unusual points
B By removing unusual points
C Analyse the residual graph
D Fit a non-linear trend line
E Groupings
F Correlation and causality
Writing about bivariate data
Pick the errors
Putting it all together
Practice tasks
Answers