The cutoff used to reject the null hypothesis is called

The cutoff used to reject the null hypothesis is called Options: (a) Significance level (b) Alpha level (c) Probability value (d) Both a and b ✅ Correct Option: (d) Both a and b are correct Explanation (200+ words): The significance level is also known as the alpha (α) level. It represents the cutoff probability for rejecting the null hypothesis, commonly set at 0.05. 10 PPSC-Related Facts: 1. Alpha controls Type I error 2. Common values: 0.05, 0.01 3. Set before analysis 4. Decision threshold 5. Used in hypothesis testing 6. Related to p-value 7. Smaller alpha = stricter test 8. Standard research practice 9. Exam-relevant term 10. Core inferential concept