The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A statistical test which indicates the chance or probability of an observed difference between two means occurring by chance is called,   (A) Tests of significance   (B) Means   (C) Ratio   (D) Normalcy
['(A) Tests of significance <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Tests of significance \n (B) Means \n (C) Ratio \n (D) Normalcy <> possible answers', '  A statistical test which indicates the chance or probability of an observed difference between two means occurring by chance is called, <> context@']