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Biofeedback is a treatment technique in which people are trained to improve their health by...

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Biofeedback is a treatment technique in which people are trained to improve their health by using signals from their own bodies Specialists in many different fields use biofeedback to help their patients cope with pain A study was conducted to compare a biofeedback treatment for chronic pain with an NSAID medical treatment A group of 2 000 newly diagnosed chronic pain patients were randomly assigned to receive to one of the two treatments After 6 weeks of treatments the pain levels of the patients were assessed with the following results Treatment Biofeedback NSAID Total Significant Reduction in Pain Yes 560 680 1 240 No 440 320 760 Total 1 000 1 000 2 000 Let T proportion of all patients who have the biofeedback treatment and experience a significant reduction and let T2 proportion of all patients who have the NSAID treatment and experience a significant reduction in pain We are interested in testing

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