The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A study finds no significant association between two variables but truly there exists a difference. What type of error is this?   (A) Type I error   (B) Type II error   (C) Random error   (D) Systematic error
['(B) Type II error <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Type I error \n (B) Type II error \n (C) Random error \n (D) Systematic error <> possible answers', '  A study finds no significant association between two variables but truly there exists a difference. What type of error is this? <> context@']