-R3.39. Acupuncture Research reported in 2008 brings to light theeffectiveness of treating chronic lower back pain with differ-ent methods. One-third of nearly 1200 volunteers wereadministered conventional treatment (drugs, physical therapy,and exercise). The remaining patients got 30-minute acu-puncture sessions. Half of these patients were punctured atsites suspected of being useful and half received needles atother spots on their bodies. Comparable shares of each acu-puncture group, roughly 45%, reported decreased back painfor at least six months after their sessions ended. This wasalmost twice as high as those receiving the conventionaltherapy, leading the researchers to conclude that results werestatistically significant.a) Why did the researchers feel it was necessary to havesome of the patients undergo a "fake" acupuncture?b) Because patients had to consent to participate in thisexperiment, the subjects were essentially self-selected-a kind of voluntary response group. Explain why thatdoes not invalidate the findings of the experiment.c) What does "statistically significant" mean in the contextof this experiment?

The experimental group or treatment group in an experiment is the group that gets the therapy. The…

Answered: R3.39. Acupuncture Research reported in…

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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