In a Study of Reaction Times,) the Regression Equation Is $= 181.501124 + 0.408378$

question 63

Multiple Choice

In a study of reaction times,) The regression equation is
Auditory $= 181.501124 + 0.408378$ Visual

$\begin{array}{lllll}\text { Predictor } & \text { Coef } & \text { SE Coef } & \text { T } & \text { P } \\\text { Constant } & 181.501124 & 21.861296 & 8.302395 & 0.00115 \\\text { Visual } & 0.408378 & 0.113544 & 3.596642 & 0.022827\end{array}$
What is the slope of the least-squares regression line?

• A) \(0.408378\)
• B) \(0.113544\)
• C) \(8.302395\)
• D) \(181.501124\)

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Definitions:

Alpha

The threshold of significance in hypothesis testing, representing the probability of committing a Type I error.

Difference Scores

The subtraction results of one set of numerical data from another, used to analyze changes or effects in experiments.

Null Hypothesis

The null hypothesis is a statement that there is no effect or no difference, and it serves as the assumption to be tested in statistical analyses.

T-test

A statistical method employed to assess if there's a significant difference between the average values of two distinct groups.