A Population, with an Unknown Distribution, Has a Mean of 80

question 16

Multiple Choice

A population, with an unknown distribution, has a mean of 80 and a standard deviation of 7. For a sample of 49, the probability that the sample mean will be larger than 82 is:

• A) 0.5228
• B) 0.9772
• C) 0.4772
• D) 0.0228

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Definitions:

Task Performance

The degree to which an individual carries out the activities and responsibilities assigned to them, often measured in terms of efficiency, effectiveness, and quality.

Social Psychological

Pertaining to the scientific study of how individuals think, feel, and behave in social contexts.

Norman Triplett

An American psychologist known for his work on social facilitation and considered a pioneer in the field of social psychology.

Deindividuation

A psychological state where an individual loses their sense of self-identity and personal responsibility, often leading to behavior that is uncharacteristic or norm-violating when in a group.