The Following Data Represent Scores on a 15 Point Aptitude

question 78

Essay

The following data represent scores on a 15 point aptitude test: 8, 10, 15, 12, 14, and 13.
a. Complete the sample mean for the original data.
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Subtract 5 from every observation and complete the sample mean for the new data.
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b. Complete the sample variance for the original data.
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Subtract 5 from every observation and complete the sample variance for the new data.
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c. What effect, if any, does subtracting 5 from every observation have on the sample mean and sample variance?
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Definitions:

Cognitive Revolution

The cognitive revolution refers to a significant shift in psychology during the 1950s to 1970s, emphasizing the study of the mind and internal mental processes.

Symbolic

Pertaining to the use of symbols or symbolism to represent ideas or qualities.

Generative

Relating to the capacity of something to produce or create, often used in the context of grammar and linguistics to describe the ability to generate an infinite number of sentences.

Structured

Organized and planned in a methodical way, often referring to schedules, research designs, or informational frameworks.