Research Methods 2

Week 11: Binary data, including the c² test

Aims
To understand what a binary variable is and how its statistical analysis differs from that for a Normal variable.

Objectives

To appreciate, in general terms, how the measurement of variation is different for a binary variable.

To understand how to summarise a binary variable

To know what a c² test does and how to apply one in Minitab

This week there is one document to be studied, with an accompanying exercise sheet.

Study the document An Introduction to Binary Data, which explains the ideas behind this test.
Answer the questions in Exercise Sheet 1.
You should check your answers by referring to the Solutions to Exercise Sheet 1.

Further reading on the topics addressed this week can be found in Bland, chapter 8 (sections 4 & 5) and chapter 13

You should now attempt the questions in MCQ3.