Solution Found!
Comparing bone density Refer to the previous exercise. One of Judys friends, Mary, has
Chapter 2, Problem 14(choose chapter or problem)
Comparing bone density Refer to the previous exercise. One of Judys friends, Mary, has the bone density in her hip measured using DEXA. Mary is 35 years old. Her bone density is also reported as 948 g/cm2 , but her standardized score is z = 0.50. The mean bone density in the hip for the reference population of 35-year-old women is 944 grams/cm2 . (a) Whose bones are healthierJudys or Marys? Justify your answer. (b) Calculate the standard deviation of the bone density in Marys reference population. How does this compare with your answer to Exercise 13(b)? Are you surprised?
Questions & Answers
QUESTION:
Comparing bone density Refer to the previous exercise. One of Judys friends, Mary, has the bone density in her hip measured using DEXA. Mary is 35 years old. Her bone density is also reported as 948 g/cm2 , but her standardized score is z = 0.50. The mean bone density in the hip for the reference population of 35-year-old women is 944 grams/cm2 . (a) Whose bones are healthierJudys or Marys? Justify your answer. (b) Calculate the standard deviation of the bone density in Marys reference population. How does this compare with your answer to Exercise 13(b)? Are you surprised?
ANSWER:Step 1 of 4
Given,
Mary’s bone density in the hip =
Mary’s standardized score of bone density,
The mean bone density in the hip =
Let’s determine the following: