1 1 Migraine and Acupuncture A migraine is a particularly painful type of headache which patients sometimes wish to treat with

Question

1 1 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 95 females diagnosed with migraine headaches were randomly assigned to one of two groups treatment or control 49 patients in the treatment group received acupuncture that is specifically designed to treat migraines 46 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 please round answers to within one hundredth of a percent Pain Free Yes Pain Free No Total Treatment 13 36 49 Control 4 42 46 Total 17 78 95 a What percent of patients in the treatment group were pain free 24 hours after receiving acupuncture b What percent of patients in the control group were pain free after 24 hours c At first glance does acupuncture appear to be an effective treatment for migraines Explain your reasoning OYes because more individuals in the treatment group were pain free after 24 hours O No because there were fewer people in the treatment group O no because more than half of the individuals in the treatment group still experience pain 24 hours later OYes because a higher percentage of individuals in the treatment group were pain free after 24

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