Which statement sounds like a null hypothesis?

Which statement sounds like a null hypothesis? Options: (a) The coin is not fair (b) There is a correlation (c) There is no difference between male and female incomes (d) The defendant is guilty ✅ Correct Option: (c) Explanation (200+ words): A null hypothesis states that there is no effect, no difference, or no relationship. Option (c) clearly states “there is no difference,” which matches the definition of a null hypothesis. 10 PPSC-Related Facts: 1. Null hypothesis assumes no effect 2. Symbolized as H₀ 3. Tested statistically 4. Default assumption 5. Must be rejected or retained 6. Opposite of research hypothesis 7. Used in inferential statistics 8. Common exam topic 9. Basis of hypothesis testing 10. Objective statement