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

question 10

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 study of the relationship between the numbers of years applicants have studied Spanish ( $x )$ and their score on the test $( y )$ .
$\begin{array}{lrrrrrrrrrr}\hline x & 3 & 4 & 4 & 2 & 5 & 3 & 4 & 5 & 3 & 2 \\\hline y & 57 & 78 & 72 & 58 & 89 & 63 & 73 & 84 & 75 & 48 \\\hline\end{array}$

The regression equation $\hat { y } = 31.55 + 10.90 x$ was obtained. Construct a residual plot for the data.

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Definitions:

Economic Crisis

A situation in which a country's economy experiences a sudden downturn brought on by a financial panic or an external shock, leading to a severe drop in consumer wealth and confidence and financial instability.

Cold War

The period of political and military tension after World War II between powers in the Western Bloc (led by the United States) and powers in the Eastern Bloc (led by the Soviet Union) that never escalated into direct major warfare.

Institutional Care

The provision of care in a structured setting, such as hospitals, nursing homes, or orphanages, usually for individuals who require constant supervision or assistance.

Social Psychology

A branch of psychology that studies how individuals' thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others.