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GMAT Verbal Reasoning Practice Test 4
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Question : 81 of 100
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Guitar strings often go “dead” – become less responsive and bright in tone – after a few weeks of intense use. A researcher whose son is a classical guitarist hypothesized that dirt and oil, rather than changes in the material properties of the string, were responsible.
Which of the following investigations is most likely to yield significant information that would help to evaluate the researcher’s hypothesis?
Determining if a metal alloy is used to make the strings used by classical guitarists
Determining whether classical guitarists make their strings go dead faster than do folk guitarists
Determining whether identical lengths of string, of the same gauge, go dead at different rates when strung on various brands of guitars
Determining whether a dead string and a new string produce different qualities of sound
Determining whether smearing various substances on new guitar strings causes them to go dead
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