If a Researcher Is Using a T Statistic to Test

question 71

Multiple Choice

If a researcher is using a t statistic to test a null hypothesis about a population,what information is needed from the population to calculate the t statistic?​

• A)​You must know the population mean
• B)​You must know the population variance or standard deviation
• C)​You must know the population mean and the variance or standard deviation
• D)​The t statistic does not require any information about the population

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Definitions:

Formal Operations

The stage in Piaget's theory of cognitive development where individuals develop the ability to think abstractly, logically, and systematically.

Formal Operational

A stage of cognitive development in which individuals become capable of abstract thinking and logical reasoning.

Concrete Operational

A stage in Piaget's theory of cognitive development where children gain the ability to think logically about concrete events.

Preoperational

A stage in Piaget's theory of cognitive development, occurring from approximately ages 2 to 7, characterized by symbolic thought and egocentrism but a lack of operational logic.