DrVoegeli Is Testing the Effects of a New Diet Supplement

question 73

Multiple Choice

Dr.Voegeli is testing the effects of a new diet supplement on the endurance levels of several groups of athletes.One group receives 50 ml per day of the supplement.A second group receives 50 ml per day of a substance that has no active component but looks and tastes just like the supplement.A third group receives nothing at all.In this case,what would we call the second group

• A) the experimental group 
• B) the comparison group 
• C) the control group 
• D) the placebo control group

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Definitions:

Relative Frequencies

The proportion of occurrences of a specific value relative to the aggregate count of observations, frequently shown as a percentage.

Sample Size

The number of observations or data points collected in a study or used in a statistical analysis.

Vertical Axis

The perpendicular line in a graph or chart representing the range of one of the variables under consideration.

Horizontal Axis

The x-axis in a graph, typically used to represent the independent variable or scale of measurement.