Aortic stenosis refers to a narrowing of the aortic valve

Probability and Statistics for Engineering and the Sciences | 9th Edition | ISBN: 9780321629111 | Authors: Ronald E. Walpole, Raymond H. Myers

Problem 67E Chapter 1

Probability and Statistics for Engineering and the Sciences | 9th Edition

  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Probability and Statistics for Engineering and the Sciences | 9th Edition | ISBN: 9780321629111 | Authors: Ronald E. Walpole, Raymond H. Myers

Probability and Statistics for Engineering and the Sciences | 9th Edition

4 5 0 408 Reviews
24
2
Problem 67E

Aortic stenosis ?refers to a narrowing of the aortic valve in the heart. The paper “Correlation Analysis of Stenotic Aortic Valve Flow Patterns Using Phase Contrast MRI” (?Annals of Biomed. Engr?., 2005: 878–887) gave the following data on aortic root diameter (cm) and gender for a sample of patients having various degrees of aortic stenosis: a.?? ompare and contrast the diameter observations for the two genders. b. ?Calculate a 10% trimmed mean for each of the two samples, and compare to other measures of center (for the male sample, the interpolation method mentioned in Section 1.3 must be used).

Step-by-Step Solution:

Answer: Step 1 of 2 a. We need to compare and contrast the diameter observations for the two genders. Sl. No. M F 1 3.7 3.8 2 3.4 2.6 3 3.7 3.2 4 4 3 5 3.9 4.3 6 3.8 3.5 7 3.4 3.1 8 3.6 3.1 9 3.1 3.2 10 4 3 11 3.4 12 3.8 13 3.5 Mean 3.638462 3.28 Median 3.7 3.15 Standard 0.269377 0.477959 deviation Q1 3.4 3.025 Q2 3.7 3.15 Q3 3.8 3.425 IQR(Q3 - Q1) 0.4 0.4 From Excel function we use Mean “=average( )” Median “=Median( )” Stdev “=stdev( )” Q1 “=quartile(range, 1)” Q2 “=quartile(range, 2)” Q3 “=quartile(range, 3)” Here, Aortic root diameters for males are x = 3.64 cm, Median = 3.70 cm, standard deviation s = 0.269 cm, and fourth spread or Interquartile Range (IQR) = 0.40. Similarly, Aortic root diameters for females are x = 3.28 cm, Median = 3.15 cm, s = 0.478 cm, and fourth spread or Interquartile Range (IQR) = 0.50 cm. Aortic root diameters are typically smaller for females than for males, and females show more variability. The Graphical representation is given below. The distribution for males is negatively skewed, while the distribution for females is positively skewed.

Step 2 of 2

Chapter 1, Problem 67E is Solved
Textbook: Probability and Statistics for Engineering and the Sciences
Edition: 9
Author: Ronald E. Walpole, Raymond H. Myers
ISBN: 9780321629111

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

Aortic stenosis refers to a narrowing of the aortic valve

×
Log in to StudySoup
Get Full Access to Probability And Statistics For Engineering And The Sciences - 9 Edition - Chapter 1 - Problem 67e

Forgot password? Reset password here

Join StudySoup for FREE
Get Full Access to Probability And Statistics For Engineering And The Sciences - 9 Edition - Chapter 1 - Problem 67e
Join with Email
Already have an account? Login here
Reset your password

I don't want to reset my password

Need help? Contact support

Need an Account? Is not associated with an account
Sign up
We're here to help

Having trouble accessing your account? Let us help you, contact support at +1(510) 944-1054 or support@studysoup.com

Got it, thanks!
Password Reset Request Sent An email has been sent to the email address associated to your account. Follow the link in the email to reset your password. If you're having trouble finding our email please check your spam folder
Got it, thanks!
Already have an Account? Is already in use
Log in
Incorrect Password The password used to log in with this account is incorrect
Try Again

Forgot password? Reset it here