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

Question 56

Multiple Choice

In a study of reaction times, the time to respond to a visual stimulus (x) ( x ) and the time to respond to an auditory stimulus (y) ( 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 =240.686515+0.109829= 240.686515 + 0.109829 Visual
 Predictor  Coef  SE Coef  T  P  Constant 240.68651514.27122616.8651610.000073 Visual 0.1098290.0662751.6571590.172829\begin{array} { l l l l l } \text { Predictor } & \text { Coef } & \text { SE Coef } & \text { T } & \text { P } \\ \text { Constant } & 240.686515 & 14.271226 & 16.865161 & 0.000073 \\ \text { Visual } & 0.109829 & 0.066275 & 1.657159 & 0.172829 \end{array}
What is the intercept of the least-squares regression line?


A) 0.109829
B) 0.066275
C) 16.865161
D) 240.686515

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