Suppose You Tested Two Age Groups on the Number of Details

question 25

Multiple Choice

Suppose you tested two age groups on the number of details they could recall from a paragraph.The mean for the older group is 16,and the mean for the younger group is 14.Further suppose that you fail to reject the null hypothesis for this independent samples t-test.Which of the following best accounts for the difference between these sample means?

• A)A math error has been made somewhere.
• B)The null hypothesis was incorrect to start with.
• C)The sample means probably came from different populations,and the difference is due to sampling error.
• D)The sample means probably came from the same population,and the difference is due to sampling error.

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Definitions:

Operating Efficiency

A measure of how well an organization uses its resources to produce goods or services, typically aiming for the highest output with the least waste.

Formal Organizational Structure

The officially designated arrangement of roles, responsibilities, and relationships within an organization.

Communication Channels

The means through which information is transmitted from one party to another, including verbal, non-verbal, and electronic methods.

Formal Structures

The officially designated channels of communication and hierarchies within an organization that dictate how tasks are assigned and coordinated.