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 given below to find a 99% confidence interval for the slope of the regression line. 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)(5.23,16.57)
B)(5.05,16.76)
C)(9.16,12.65)
D)(6.88,14.93)
E)(25.70,37.40)

Question

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 given below to find a 99% confidence interval for the slope of the regression line. 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)(5.23,16.57)
B)(5.05,16.76)
C)(9.16,12.65)
D)(6.88,14.93)
E)(25.70,37.40)

Quizplus · Accepted Answer

The Answer of 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 given below to find a 99% confidence interval for the slope of the regression line. 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)(5.23,16.57)
B)(5.05,16.76)
C)(9.16,12.65)
D)(6.88,14.93)
E)(25.70,37.40)

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