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ligraine and Acupuncture: A migraine is a particul ometimes wish to treat with acupuncture. To deter esearchers conducted a randomized controlled stu eadaches were randomly assigned to one of two gr reatment group received acupuncture that is speci ontrol group received placebo acupuncture (needle atients received acupuncture, they were asked if t ontingency table below Test to see if migraine pai

ligraine and Acupuncture: A migraine is a particul ometimes wish to treat with acupuncture. To deter esearchers conducted a randomized controlled stu eadaches were randomly assigned to one of two gr reatment group received acupuncture that is speci ontrol group received placebo acupuncture (needle atients received acupuncture, they were asked if t ontingency table below Test to see if migraine pai

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
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Migraine and Acupuncture: A migraine is a particularly painful type of headache, which patients sometimes wish to treat with acupuncture. To determine whether acupuncture relieves migraine pain, researchers conducted a randomized controlled study where 155 patients diagnosed with migraine headaches were randomly assigned to one of two groups: treatment or control. 68 patients in the treatment group received acupuncture that is specifically designed to treat migraines. 87 patients in the control group received placebo acupuncture (needle insertion at non-acupoint locations). 24 hours after patients received acupuncture, they were asked if they were pain free. Results are summarized in the contingency table below. Test to see if migraine pain relief is dependent on receiving acupuncture. Use a = 0.01. Treatment Control Total Pain Free: Yes Pain Free: No 19 49 7 80 26 129 a) What is the correct null hypothesis? O Ho: P1 P2 = P3 P4 O Ho: Migraine pain relief is dependent on receiving acupuncture. O Ho: Migraine pain relief is independent on receiving acupuncture. O Ho: P1 P2 P3 P4 Expected Values Treatment b) Fill in the expected values, round answers to at least 1 decimal place. Control Total 68 87 155 Pain Free: Yes Pain Free: No c) Find the test statistic, round answer to at least 2 decimal places. d) What is the P-value? (Round answer to at least 3 decimal places) e) What is the correct conclusion? O There is statistical evidence that migraine pain relief is dependent on receiving acupuncture. O There is no statistical evidence that migraine pain relief is dependent on receiving acupuncture.
Transcribed Image Text:Migraine and Acupuncture: A migraine is a particularly painful type of headache, which patients sometimes wish to treat with acupuncture. To determine whether acupuncture relieves migraine pain, researchers conducted a randomized controlled study where 155 patients diagnosed with migraine headaches were randomly assigned to one of two groups: treatment or control. 68 patients in the treatment group received acupuncture that is specifically designed to treat migraines. 87 patients in the control group received placebo acupuncture (needle insertion at non-acupoint locations). 24 hours after patients received acupuncture, they were asked if they were pain free. Results are summarized in the contingency table below. Test to see if migraine pain relief is dependent on receiving acupuncture. Use a = 0.01. Treatment Control Total Pain Free: Yes Pain Free: No 19 49 7 80 26 129 a) What is the correct null hypothesis? O Ho: P1 P2 = P3 P4 O Ho: Migraine pain relief is dependent on receiving acupuncture. O Ho: Migraine pain relief is independent on receiving acupuncture. O Ho: P1 P2 P3 P4 Expected Values Treatment b) Fill in the expected values, round answers to at least 1 decimal place. Control Total 68 87 155 Pain Free: Yes Pain Free: No c) Find the test statistic, round answer to at least 2 decimal places. d) What is the P-value? (Round answer to at least 3 decimal places) e) What is the correct conclusion? O There is statistical evidence that migraine pain relief is dependent on receiving acupuncture. O There is no statistical evidence that migraine pain relief is dependent on receiving acupuncture.
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