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

question 27

Multiple Choice

Applicants for a particular job,which involves extensive travel in Spanish-speaking countries,must take a proficiency test in Spanish.The sample data were obtained in a study of the relationship between the numbers of years applicants have studied Spanish and their score on the test.Use the regression analysis and summary statistics given below to find a 95% prediction interval for the score of an applicant who has studied Spanish for 2.2 years. $$\begin{array} { l l l l c } \text { Variable } & \text { Count } & \text { Mean } & \text { StdDev } & \text { Range } \\\text { Years } & 10 & 3.5 & 0.341565 & 3 \\\text { Score } & 10 & 69.7 & 4.088058 & 41\end{array}$$ Dependent variable is: Score R-squared = 83.0%
S = 5.65138 with 10 - 2 = 8 degrees of freedom $$\begin{array} { l l l l l } \text { Variable } & \text { Coefficient } & \text { SE(Coeff) } & \text { t-ratio } & \text { P-value } \\\text { Constant } & 31.53333 & 6.360418 & 4.957745 & 0.00111 \\\text { Number of years } & 10.90476 & 1.744054 & 6.252538 & 0.000245\end{array}$$

• A)43.7 to 67.3
• B)40.9 to 70.2
• C)43.1 to 70.9
• D)51.5 to 59.5
• E)48.9 to 62.2

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Definitions:

Mediating Variables

Factors that intervene or serve as a link in the causal relationship between independent and dependent variables, offering insight into how external influences affect outcomes.

Indirect Influence

The ability to affect the behavior or attitudes of others in a non-direct way, often through subtlety or persuasion.

Demands And Constraints

Refers to the pressures, expectations, limitations, and obstacles that individuals or organizations face in achieving objectives.

Objective Job Conditions

The factual, measurable aspects of a job, such as its duties, requirements, and working conditions, rather than subjective perceptions.