Homework Help is Here – Start Your Trial Now!
Math
Statistics
37. Find P99, the 99th percentile. This is the bone density score separating the bottom 99% from the top 1%.

37. Find P99, the 99th percentile. This is the bone density score separating the bottom 99% from the top 1%.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

Hello, I'm having some hard time with #37 and #39.

 

Finding Bone Density Scores. In Exercises 37–40 assume that a randomly selected sub- ject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. In each case, draw a graph, then find the bone density test score corresponding to the given information. Round results to two decimal places. 37. Find P99, the 99th percentile. This is the bone density score separating the bottom 99% from the top 1%. 38. Find P10, the 10th percentile. This is the bone density score separating the bottom 10% from the top 90%. 39, If bone density scores in the bottom 2% and the top 2% are used as cutoff points for levels that are too low or too high, find the two readings that are cutoff values. 40. Find the bone density scores that can be used as cutoff values separating the lowest 3% and highest 3%.
Transcribed Image Text:Finding Bone Density Scores. In Exercises 37–40 assume that a randomly selected sub- ject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. In each case, draw a graph, then find the bone density test score corresponding to the given information. Round results to two decimal places. 37. Find P99, the 99th percentile. This is the bone density score separating the bottom 99% from the top 1%. 38. Find P10, the 10th percentile. This is the bone density score separating the bottom 10% from the top 90%. 39, If bone density scores in the bottom 2% and the top 2% are used as cutoff points for levels that are too low or too high, find the two readings that are cutoff values. 40. Find the bone density scores that can be used as cutoff values separating the lowest 3% and highest 3%.
Expert Solution
Step 1

Here given mean is zero and standard deviation is 1 

So it is standard normal distribution 

Here use standard normal distribution table for z score from probability 

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS