A Random Sample of Size 36 Is Taken from a Population

question 136

Multiple Choice

A random sample of size 36 is taken from a population with mean µ = 17 and standard deviation σ = 6. The probability that the sample mean is greater than 18 is ________.

• A) 0.1587
• B) 0.4325
• C) 0.5675
• D) 0.8413

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Definitions:

Cognitive Psychology

A branch of psychology that studies mental processes including how people think, perceive, remember, and learn.

Functionalism

A paradigm in psychology that focuses on how mental and behavioral processes enable an individual to adapt, survive, and flourish.

Wilhelm Wundt

Often recognized as the father of experimental psychology, he founded the first formal psychology laboratory in Leipzig, Germany, in 1879.

Titchener

Edward Titchener, a psychologist who founded structuralism, a theory focused on breaking down mental processes into the most basic components.