In an Actual Experiment, a Researcher Claims a Drug Cures

question 44

Multiple Choice

In an actual experiment, a researcher claims a drug cures a higher percentage of patients than the current therapy does.What is the null hypothesis, and why?

• A) The new drug cures more people; because that's the researcher's claim.
• B) The new drug cures more people; because the null hypothesis is based on the best drug.
• C) The new drug is equal in performance to the old drug; because the null hypothesis always assumes no statistically significant difference exists.
• D) The side effects of the current drug are the null hypothesis.

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Definitions:

Tropomyosin

A protein found in muscle tissue that regulates muscle contraction by blocking or exposing binding sites for myosin on actin filaments.

Troponin

A protein complex involved in muscle contraction; found in cardiac and skeletal muscles, its levels in the blood are used as a diagnostic indicator for heart attacks.

Sarcomere Distance

The length between two Z lines in a muscle fiber, defining the fundamental unit of muscle contraction.

Muscle Twitch

Single contraction of a muscle fiber; typically lasts only a fraction of a second.