b) Fill in the expected values, round answers to at least 2 decimal places. Expected Values Treatment Pain Free: Yes Control Answers show on last attempt Treatment Control Pain Free: Yes Pain Free: No Pain Free: No c) Find the test statistic, round answer to at least 3 decimal places. d) What is the p-value? Round answer to at least 3 decimal places
b) Fill in the expected values, round answers to at least 2 decimal places. Expected Values Treatment Pain Free: Yes Control Answers show on last attempt Treatment Control Pain Free: Yes Pain Free: No Pain Free: No c) Find the test statistic, round answer to at least 3 decimal places. d) What is the p-value? Round answer to at least 3 decimal places
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
I need the right answers to b, c, and d.
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 166 patients diagnosed with migraine
headaches were randomly assigned to one of two groups: treatment or control. 76 patients in the
treatment group received acupuncture that is specifically designed to treat migraines. 90 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 =
0.1.
Treatment
Control
Total
Pain Free: Yes Pain Free: No
22
54
5
85
27
139
a) What is the correct null hypothesis?
Ho: Migraine pain relief is independent on receiving acupuncture.
Ho: P₁ ‡ P2 ‡ P3 ‡ P4
Ho: P₁ P2 = P3 = P4
Ho: Migraine pain relief is dependent on receiving acupuncture.
b) Fill in the expected values, round answers to at least 2 decimal places.
Expected
Values
Pain Free: No
Treatment
Pain Free: Yes
Control
Answers show on
last attempt
Treatment
Control
Total
76
90
166
Pain Free:
Yes
Pain
Free: No
c) Find the test statistic, round answer to at least 3 decimal places.
d) What is the p-value? Round answer to at least 3 decimal places
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