The data below represent the means from 15 sample control charts for the amount of time in minutes it takes students to complete a quiz in a basic statistics course.The same quiz was given to 15 different sections of a basic statistics course.Five students were sampled from each class and each mean is shown below. 
Which graph is the control chart for 
?
Definitions:
Implicit Personality Theory
The assumptions individuals unconsciously make about how personality traits are connected and how they influence behavior.
Physical Characteristics
The observable attributes or features of an object, person, or place.
Perceptual Selection
The process by which individuals filter, select, and interpret sensory information to create a meaningful picture of the world.
Safety Standards
Regulations and procedures put in place to ensure the health and safety of individuals in the workplace or public areas.
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