Make up to $500 this semester by taking notes for StudySoup as an Elite Notetaker Apply Now

BSC Magnet Treatment of Pain Researchers conducted a study

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Problem 11BSC Chapter 9.5

Elementary Statistics | 12th Edition

  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

4 5 0 358 Reviews
15
3
Problem 11BSC

BSC Magnet Treatment? of Pain Researchers conducted a study to determine whether magnets are effective in treating back pain, with results given below (based on data from “Bipolar Permanent Magnets for the Treatment of Chronic Lower Back Pain: A Pilot Study,” by Collacott, Zimmerman, White, and Rindon Journal of the American Medical Association,Vol. 283, No. 10). The values represent measurements of pain using the visual analog scale. Use a 0.05 significance level to test the claim that those given a sham treatment (similar to a placebo) have pain reductions that vary more than the pain reductions for those treated with magnets. Reduction in Pain Level After Sham Treatment: n= 20, x= 0.44,s =1.4 Reduction in Pain Level After Magnet Treatment: n= 20, x= 0.49,s =0.96

Step-by-Step Solution:

Solution 11 BSC Step 1 The given problem explain about Magnet treatment. From the given information we know that we want to test the claim that those given a sham treatment have pain reductions that vary more than the pain reductions for those treated with magnets. Here, first sample is sham treatment because its standard deviation is larger and second sample is magnet treatment. Then hypothesis is H 0 =1 2 H 1 > 1 2 Where and are the variance of population. 1 2 Then the given data is Reduction in pain level after n1=20 Sham treatment : x1= 0.44 s =1.4 1 Magnet treatment : n 220 x 20.49 s2=0.96

Step 2 of 2

Chapter 9.5, Problem 11BSC is Solved
Textbook: Elementary Statistics
Edition: 12th
Author: Mario F. Triola
ISBN: 9780321836960

×
Log in to StudySoup
Get Full Access to Elementary Statistics - 12th Edition - Chapter 9.5 - Problem 11bsc

Forgot password? Reset password here

Join StudySoup for FREE
Get Full Access to Elementary Statistics - 12th Edition - Chapter 9.5 - Problem 11bsc
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