Answered: Which technique for gathering data…

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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Which technique for gathering data (observational study or experiment) do you think was used in the following study?

The Colorado Division of Wildlife caught 41 bighorn sheep on Mt. Evans and gave each one an injection to prevent heartworm. A year later, 38 of these sheep did not have heartworm, while the other three did.

A. This is an observational study because a treatment was deliberately imposed on the individuals in order to observe a possible change in the response or variable being measured.

B. This is an experiment because a treatment was deliberately imposed on the individuals in order to observe a possible change in the response or variable being measured.

C. This is an observational study because observations and measurements of individuals are conducted in a way that doesn't change the response or the variable being measured.

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we are told that 41 bighorn we caught and they were injected.

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