Suppose You Take a Random Sample from a Normally Distributed $\mu$

question 24

Multiple Choice

Suppose you take a random sample from a normally distributed population with mean $\mu$ = 175 and compute the sample mean $$\bar { x }$$ . If $$\sigma _ { \bar { x } } ^ { 2 }$$ = 9, find P( $$\bar { x }$$ > 172) .

• A)0300
• B)0100
• C)1732
• D)0577
• E)8413

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Definitions:

Fads

Temporary, highly popular trends or behaviors that spread quickly and are followed with enthusiasm, but fade away just as quickly.

Demographic Shifts

Changes in the characteristics of a population over time, which can include age, ethnicity, gender distribution, and so forth.

Social Change

The transformation of culture, behavior, social institutions, and social structure over time, often seen as a necessary aspect of societal progress or development.

Emergent Norm Theory

A sociological hypothesis that posits individuals in a crowd behave not out of pre-existing norms, but from norms that emerge and are accepted within the crowd during the event.