Eight students wanted to find out more about people who lived in a squatter settlement which was near to their school in a city in Uttar Pradesh, India. The squatter settlement had grown rapidly in the last ten years, both in size and in the number of inhabitants. They decided to investigate the following hypotheses: Hypothesis 1: Most people who live in the squatter settlement came to the city to look for a paid job. Hypothesis 2: Many of the people who live in the squatter settlement have paid jobs but they are poor people. The students decided that the best way to test their hypotheses was to ask some people who lived in the squatter settlement to give answers to a questionnaire. (a) Their first task was to produce their questionnaire. An example of a completed questionnaire is shown in Fig. 7 (Insert). [Figure 7]