The Hb level is healthy women has mean 13.5 g/dl and standard detion 1.5 g/dl, what is the Z score for a woman with Hb level 15.0 g/dI –
Correct Answer: 1
Description: Ans. is 'd' i.e., 1.0 Thus the Z score for the woman in question is 1.0. Very simple funda to calculate Z score Normal variate indicates that the given observation is how many standard detion away from the mean. Here mean is 13.5 g/c11, SD is 1.5 g/dl and observation is 15 g/dl. That means observation (15 g/dl) is 1 SD (1.5 g/dl) away from mean (13.5 g/dl). So relative dete (Z-score) is 1. In same question, if we assume that the observed value is 16.5 (mean +- 2 SD) that means relative dete is 2 as the observed value is 2 SD away from mean.
Category:
Social & Preventive Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now