Many studies look at how people manage their commutes, focusing on how they separate themselves from the crowd. A researcher investigated whether there was a difference in the use of audio devices (such as wearing headphones or earbuds) between different types of commuters: those travelling on public buses versus those travelling on commuter trains.
An observational study was conducted during the morning rush hour across several transit lines, tracking whether randomly chosen commuters were wearing headphones/earbuds or not.
The collected data is presented below:
| Number of bus and train commuters wearing or not wearing headphones/earbuds | ||
|---|---|---|
| Wearing headphones/earbuds | Not wearing headphones/earbuds | |
| Bus commuters | 73 | 41 |
| Train commuters | 92 | 24 |
Explain why the Chi-Square (χ2\chi^2χ2) test is the correct non-parametric inferential statistical test to use to analyse the data in this study.
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.