An IT security firm conducted a survey to investigate whether the primary type of cybersecurity breach experienced by organizations differs across different corporate sectors. They collected data from a sample of 300 organizations, identifying the single most disruptive type of breach each organization had experienced over the previous 12 months.
Table displaying the number of organizations in each sector categorized by their primary type of security breach
| Phishing | Ransomware | Credential Theft | DDoS Attack | |
|---|---|---|---|---|
| Finance Sector | 45 | 18 | 22 | 15 |
| Healthcare Sector | 32 | 41 | 14 | 13 |
| Education Sector | 50 | 12 | 28 | 10 |
Explain why the Chi-Square test of association is the appropriate non-parametric statistical test to use to analyse the data from this investigation.
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.