In a Study of Reaction Times,) Construct A $95 \%$ Confidence Interval for the Slope of the Least-Squares Regression Line

Multiple Choice

In a study of reaction times,) $\begin{array}{cc}\hline \text { Visual } & \text { Auditory } \\\hline 193 & 189 \\240 & 222 \\239 & 226 \\236 & 225 \\200 & 189 \\161 & 158 \\214 & 209 \\204 & 193 \\\hline\end{array}$

Construct a $95 \%$ confidence interval for the slope of the least-squares regression line.

A) $( 21.1134,21.3481 )$
B) $( 0.7370,0.9716 )$
C) $( 21.1376,21.3239 )$
D) $( 0.7611,0.9474 )$