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

question 47

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.
Dependent variable is: Score
R-squared = 83.0%
S = 5.65138 with 10 - 2 = 8 degrees of freedom

• 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:

Truth Table

A mathematical table used in logic to determine whether an expression is true or false under all possible interpretations.

Contingent

Dependent on or conditioned by something else; possible but not certain to occur.

Truth Table

A mathematical table used in logic to determine whether combinations of propositions are true or false.