Applicants for a Particular Job,which Involves Extensive Travel in Spanish-Speaking

question 25

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 and their score on the test.
Using a 1% level of significance,do the data provide sufficient evidence to conclude that the slope of the regression line is not 0 and hence that number of years of study is useful as a predictor of score on the test?

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Definitions:

Puzzle Box

A problem-solving task used in experiments, often with animals, to study learning and behavior.

Shaping

A method used in behavioral psychology to gradually train a new behavior by reinforcing successive approximations of the desired behavior.

Successive Approximations

A technique in behaviorism where behaviors are broken down into small tasks and each one is mastered in turn leading towards a target behavior.

Desired Response

The expected or targeted reaction or outcome from a given stimulus or action.