(a) A pharmaceutical company testing a new type of pain reliever administered the drug to 30 volunteers...
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(a) A pharmaceutical company testing a new type of pain reliever administered the drug to 30 volunteers experiencing pain. Sixteen of them said that it eased their pain. Does this evidence support the claim that the drug is effective in combating pain?
(b) A second group of 40 volunteers were given a placebo instead of the drug. Thirteen of them reported a reduction in pain. Does this new evidence cast doubt upon your previous conclusion?
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Related Book For
Statistics For Economics Accounting And Business Studies
ISBN: 978027368308
4th Edition
Authors: Michael Barrow
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