In a Hypothesis Test in Which the Null Hypothesis States $\pi$

question 20

Multiple Choice

In a hypothesis test in which the null hypothesis states that the difference between two population proportions is 0, that is, when $\pi$ ₁ = $\pi$ ₂, which of the following occurs?

• A)a common pooled value is calculated as a weighted average of the individual sample proportions
• B)a one-tailed hypothesis test is performed
• C) the t distribution is used
• D)the sampling distribution is positively skewed
• E)all of the above

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Definitions:

Encoding

The process of transforming information into a format that can be stored in the brain; a crucial step in the process of creating new memories.

Mental Age

A measure of a person's intellectual development relative to people of their chronological age, indicating how far they have progressed in their cognitive abilities.

Cognitive Abilities

The mental capabilities that involve the acquisition, processing, retention, and application of information, such as memory, reasoning, attention, and problem-solving.

Encoding

The process of translating sensory input into a form or format that can be stored and used by the memory system.