In a study of reaction times,) $\begin{array}{cc}
\hline \text { Visual } & \text { Auditory } \
\hline 208 & 200 \
177 & 175 \
250 & 233 \
248 & 234 \
152 & 155 \
164 & 161 \
196 & 190 \
238 & 230 \
\hline
\end{array}$

Compute the least-squares regression line for predicting auditory response time $( y )$ from visual response time $( x )$.
A) $y = 25.345634 + 0.842152 x$
B) $y = 25.345634 x$
C) $y = 0.842152 + 25.345634 x$
D) $y = 0.842152 x$

Question

In a study of reaction times,) $\begin{array}{cc}
\hline \text { Visual } & \text { Auditory } \
\hline 208 & 200 \
177 & 175 \
250 & 233 \
248 & 234 \
152 & 155 \
164 & 161 \
196 & 190 \
238 & 230 \
\hline
\end{array}$

Compute the least-squares regression line for predicting auditory response time $( y )$ from visual response time $( x )$.
A) $y = 25.345634 + 0.842152 x$
B) $y = 25.345634 x$
C) $y = 0.842152 + 25.345634 x$
D) $y = 0.842152 x$

Quizplus · Accepted Answer

The least-squares regression line formula is $y = b_0 + b_1x$, where $b_0$ is the y-intercept and $b_1$ is the slope. The given choice A, $y = 25.345634 + 0.842152 x$, correctly represents this form, indicating it is the correct equation for predicting auditory response time based on visual response time, assuming the calculations for the slope ($b_1$) and y-intercept ($b_0$) are accurate based on the given data.

In a Study of Reaction Times,) Compute the Least-Squares Regression Line for Predicting Auditory Response Time