Social & Preventive Medicine Mean bone density amongst two groups of 50 people each is compared with each other. The test of significance used would be: A Paired-t-test B Student t-test C Analysis of variance D Chi-Square test 💡 Explanation Mean bone density amongst two groups of 50 people each is compared with each other. The test of significance used would be: ✓ Correct Answer: B. Student t-test