EBK BIOLOGY
5th Edition
ISBN: 8220100667978
Author: Maier
Publisher: PEARSON
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Chapter 1, Problem 5LTB
Summary Introduction
Introduction:
The scientific hypothesis can be defined as an idea or explanation or a proposed explanation which is then tested through the scientific study and experimentation. It is based on some observation. It is usually more than a wild guess but less than a well-established theory.
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A researcher is conducting an experiment testing whether a new pharmaceutical drug is able to effectively treat heartburn and has a physician assisting with the study involving volunteers who experience chronic heartburn. Which of the following descriptions most closely describes the control used in this study?
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The researcher has organized the patients into 4 groups, where patients either take 1 dose of the drug, 2 doses of the drug, 1 dose of the placebo, or 2 doses of the placebo.
The physician asks patients to rate their heartburn discomfort on a scale from 1-10 every 5 minutes up to an hour.
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The placebo pill contains just compressed sugar and no active drug.
Patients are randomly selected and placed into the four categories.
Chapter 1 Solutions
EBK BIOLOGY
Ch. 1 - Prob. 1LTBCh. 1 - Which of the following is an example of inductive...Ch. 1 - A scientific hypothesis is ___________. an...Ch. 1 - How is a scientific theory different from a...Ch. 1 - Prob. 5LTBCh. 1 - If I perform a hypothesis test in which I...Ch. 1 - Prob. 7LTBCh. 1 - Prob. 8LTBCh. 1 - A relationship between two factors, for instance,...Ch. 1 - A primary source of scientific results is...
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