An Experiment Was Done to Compare the Effect of Having

question 10

Multiple Choice

An experiment was done to compare the effect of having a conversation via a hands-free mobile phone, having a conversation with an in-car passenger, and no distraction (baseline) on driving accuracy. Twenty participants from two different age groups (18-25 years and 26-40 years) took part. All participants in both age groups took part in all three conditions of the experiment (in counterbalanced order) , and their driving accuracy was measured by a layperson who remained unaware of the experimental hypothesis.
-Which of the following sentences regarding the output below is correct?

• A)Variances are heterogeneous for all levels of the repeated-measures variable.
• B)Sphericity can be assumed in all conditions.
• C)None of the means in each driving condition differ from each other.
• D)Variances are homogeneous for all levels of the repeated-measures variable.

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Definitions:

Operating Income

Income generated from a company's primary business activities, excluding revenue and expenses from peripheral activities, interest, and taxes.

Investment Center

A business unit within an organization that is responsible for its own revenue, expenses, and investments, allowing it to be evaluated on its profit contributions and investment returns.

Profit Center

A branch or division of a company that is directly responsible for generating its own revenue and profits.

Fixed Assets

Long-term tangible assets, such as buildings, machinery, and equipment, used in the operation of a business and not expected to be consumed or converted into cash in the short term.