In a Study of Reaction Times, the Time to Respond $( x )$

question 23

Multiple Choice

In a study of reaction times, the time to respond to a visual stimulus $( x )$ and the time to respond to an auditory stimulus $( y )$ were recorded for each of 6 subjects. Times were measured in thousandths of a second. The results are presented in the following table.
The following MINITAB output describes the fit of a linear model to these data. Assume assumptions of the linear model are satisfied.
The regression equation is
Auditory $= 193.269291 + 0.354955$ Visual
$\begin{array} { l l l l l } \text { Predictor } & \text { Coef } & \text { SE Coef } & \mathrm { T } & \mathrm { P } \\ \text { Constant } & 193.269291 & 16.307408 & 11.851625 & 0.000291 \\ \text { Visual } & 0.354955 & 0.086702 & 4.093976 & 0.014927 \end{array}$
What is the slope of the least-squares regression line?

• A) 0.354955
• B) 11.851625
• C) 0.086702
• D) 193.269291

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