National Achievement Test Scores Narrative

question 71

Essay

National Achievement Test Scores Narrative
The scores on a national achievement test were normally distributed, with a mean of 550 and a standard deviation of 112.
-Refer to National Achievement Test Scores Narrative. If you achieved a score of 690, how far, in standard deviations, did your score depart from the mean?

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Definitions:

Unambiguous

Clear and precise with only one interpretation, leaving no doubt or confusion.

Ambiguous

Something that can be understood in more than one way; lacking clearness or definiteness.

Productivity

In industry, the capability to produce effectively, gauged by how much output is generated per input unit.

Reinforcement

In psychology, a process by which a behavior is strengthened or increased in frequency, often through the application of a reward or the removal of a negative stimulus.