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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Definitions:

Zygote

The initial cell formed when a sperm cell fertilizes an egg cell, marking the beginning of a new organism's development.

Germinal Stage

The germinal stage is the first phase of prenatal development, encompassing the period from fertilization to implantation of the embryo in the uterus.

Embryonic Stage

A critical phase in development spanning from fertilization until the end of the eighth week, where initial formation of major structures and organs occurs.

Fertilisation

The process by which male and female reproductive cells (gametes) unite, leading to the development of a new organism.