Concept explainers
(a)
To explain whether the z score = -1.45 or z = 0.50, out of these which one shows more healthier person.
(a)
Explanation of Solution
The z score tells us how far the particular value is from the
Here, the z score equal to -1.45 means that the her bone density is 1.45 standard deviations less than the mean (956) whereas the z score equal to 0.50 that the bone density of the person is 0.5 standard deviation above then the mean.
The higher the bone density means that healthier the person, therefore the person which have the z score equal to 0.50 is more healthier.
(b)
To calculate the value of standard deviation for the bone density of 35 year old.
(b)
Answer to Problem 3.4E
Standard deviation = 8
Explanation of Solution
Given:
Formula used:
Calculation:
Chapter 3 Solutions
Statistics Through Applications
Additional Math Textbook Solutions
Introductory Statistics (10th Edition)
Basic Business Statistics, Student Value Edition
Introductory Statistics
Statistics: The Art and Science of Learning from Data (4th Edition)
Elementary Statistics: Picturing the World (6th Edition)
Elementary Statistics Using Excel (6th Edition)
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