OPENINTRO:STATISTICS
4th Edition
ISBN: 9781943450077
Author: OPENINTRO
Publisher: amazon.com
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Chapter 1.1, Problem 1E
a.
To determine
Find the percentage of treatment group patients who are pain free.
b.
To determine
Find the percentage of control group patients who are pain free.
c.
To determine
Identify which group has more percent of pain free patients.
d.
To determine
Find another possible explanation for the observed difference between the percentages of patients which are pain free 24 hours after receiving acupuncture in the two groups.
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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 164 patients diagnosed with migraine
headaches were randomly assigned to one of two groups: treatment or control. 70 patients in the
treatment group received acupuncture that is specifically designed to treat migraines. 94 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
= 0.05.
Pain Free: Yes Pain Free: No
Total
Treatment
Control
Total
19
51
70
9
85
94
28
136
164
a) What is the correct null hypothesis?
O Ho: P1 P2 P3 = P4
O Ho: Migraine pain relief is dependent on…
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 151 patients
diagnosed with migraine headaches were randomly
assigned to one of two groups: treatment or control. 66
patients in the treatment group received acupuncture that
is specifically designed to treat migraines. 85 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 = 0.05.
Pain Free:
Pain Free:
Total
Yes
No
Treatment
19
47
66
Control
7
78
85
Total
26
125
151
a) What is the correct null hypothesis?
Ho: Migraine pain relief is independent on receiving…
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 151 patients
diagnosed with migraine headaches were randomly
assigned to one of two groups: treatment or control. 66
patients in the treatment group received acupuncture that
is specifically designed to treat migraines. 85 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 = 0.05.
Pain Free:
Pain Free:
Total
Yes
No
Treatment
19
47
66
Control
7
78
85
Total
26
125
151
a) What is the correct null hypothesis?
Họ: Migraine pain relief is independent on receivin…
Chapter 1 Solutions
OPENINTRO:STATISTICS
Ch. 1.1 - Prob. 1GPCh. 1.1 - Prob. 1ECh. 1.1 - Prob. 2ECh. 1.2 - Prob. 2GPCh. 1.2 - Prob. 3GPCh. 1.2 - Prob. 4GPCh. 1.2 - Prob. 6GPCh. 1.2 - Prob. 7GPCh. 1.2 - Prob. 3ECh. 1.2 - Prob. 4E
Ch. 1.2 - Prob. 5ECh. 1.2 - Prob. 6ECh. 1.2 - Prob. 7ECh. 1.2 - Prob. 8ECh. 1.2 - Prob. 9ECh. 1.2 - Prob. 10ECh. 1.2 - Prob. 11ECh. 1.2 - Prob. 12ECh. 1.3 - Prob. 9GPCh. 1.3 - Prob. 11GPCh. 1.3 - Prob. 12GPCh. 1.3 - Prob. 13GPCh. 1.3 - Prob. 13ECh. 1.3 - Prob. 14ECh. 1.3 - Prob. 15ECh. 1.3 - Prob. 16ECh. 1.3 - Prob. 17ECh. 1.3 - Prob. 18ECh. 1.3 - Prob. 19ECh. 1.3 - Prob. 20ECh. 1.3 - Prob. 21ECh. 1.3 - Prob. 22ECh. 1.3 - Prob. 23ECh. 1.3 - Prob. 24ECh. 1.3 - Prob. 25ECh. 1.3 - Prob. 26ECh. 1.3 - Prob. 27ECh. 1.3 - Prob. 28ECh. 1.4 - Prob. 16GPCh. 1.4 - Prob. 17GPCh. 1.4 - Prob. 29ECh. 1.4 - Prob. 30ECh. 1.4 - Prob. 31ECh. 1.4 - Prob. 32ECh. 1.4 - Prob. 33ECh. 1.4 - Prob. 34ECh. 1 - Prob. 35ECh. 1 - Prob. 36ECh. 1 - Prob. 37ECh. 1 - Prob. 38ECh. 1 - Prob. 39CECh. 1 - Prob. 40CECh. 1 - Prob. 41CECh. 1 - Prob. 42CECh. 1 - Prob. 43CECh. 1 - Prob. 44CE
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- 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. 65 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 = 0.05. Treatment Control Total Pain Free: Yes Pain Free: No 50 15 4 86 19 136 a) What is the correct null hypothesis? O Ho: P₁ P2 = P3 = P4 O Ho: Migraine pain relief is dependent on receiving…arrow_forwardMigraine 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 158 patients diagnosed with migraine headaches were randomly assigned to one of two groups: treatment or control. 77 patients in the treatment group received acupuncture that is specifically designed to treat migraines. 81 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 = .10. Or Treatment Control Total a) What is the correct null hypothesis? Pain Free: Yes Pain Free: No 23 54 7 74 30 128 Ho: Migraine pain relief is independent on receiving acupuncture. O Ho:…arrow_forwardMigraine 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 154 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. 86 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. Pain Free: Yes Pain Free: No Total Treatment 20 48 68 Control 6 80 86 Total 26 128 154arrow_forward
- 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 154 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. 86 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. Pain Free: Pain Free: Total Yes No Treatment 20 48 68 Control 80 86 Total 26 128 154arrow_forwardMigraine 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 156 patients diagnosed with migraine headaches were randomly assigned to one of two groups: treatment or control. 67 patients in the treatment group received acupuncture that is specifically designed to treat migraines. 89 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 = 0.05. Pain Free: Yes Pain Free: No Total Treatment 19 48 67 Control 4 85 89 Total 23 133 156 a) What is the correct null hypothesis? Ho: P1 P2 = P3 = P4 Họ: Migraine pain relief is independent…arrow_forwardMigraine 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 161 patients diagnosed with migraine headaches were randomly assigned to one of two groups: treatment or control. 65 patients in the treatment group received acupuncture that is specifically designed to treat migraines. 96 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 αα = 0.05. Pain Free: Yes Pain Free: No Total Treatment 13 52 65 Control 5 91 96 Total 18 143 161 b) Fill in the expected values, round answers to at least 4 decimal places.…arrow_forward
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