Applicants for a Particular Job, Which Involves Extensive Travel in Spanish

question 52

Essay

Applicants for a particular job, which involves extensive travel in Spanish speaking_
countries must take a proficiency test in Spanish. The sample data below were obtained in a
study of the relationship between the numbers of years applicants have studied Spanish (x)
and their score on the test (y). $\begin{array}{rrrrrrrrrrr}\hline x & 3 & 4 & 4 & 2 & 5 & 3 & 4 & 5 & 3 & 2 \\\hline y & 57 & 78 & 72 & 58 & 89 & 63 & 73 & 84 & 75 & 48 \\\hline\end{array}$
The regression equation $\hat { y } = 31.55 + 10.90 x$ was obtained. Construct a residual plot for the data.

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Definitions:

Cultural Heritage

The legacy of physical artifacts and intangible attributes of a group or society that are inherited from past generations, preserved in the present and bestowed for the benefit of future generations.

Collective Unconscious

A concept in psychology, proposed by Carl Jung, referring to the part of the unconscious mind that is derived from ancestral memory and experience and is common to all humankind.

Demographic Characteristics

Quantifiable aspects of a population such as age, sex, income level, and education, often used in research to segment groups.

Customs

Established and traditional practices or behaviors that are specific to a culture, society, or community.