In a Chi-Square Test for the Equality of Three Population $\pi$

question 88

Multiple Choice

In a chi-square test for the equality of three population proportions, the appropriate null and alternative hypotheses are

• A)H0: \(\pi\)₁ = \(\pi\)₂ = \(\pi\)₃ Ha: \(\pi\)₁ ≠ \(\pi\)₂ ≠ \(\pi\)₃
• B)H0: \(\pi\)₁ < \(\pi\)₂ < \(\pi\)₃ Ha: \(\pi\)₁ > \(\pi\)₂ > \(\pi\)₃
• C)H0: \(\pi\)₁ = \(\pi\)₂ = \(\pi\)₃ Ha: \(\pi\)₁ ≠ \(\pi\)₂ and \(\pi\)₂ ≠ \(\pi\)₃
• D)H0: \(\pi\)₁ = \(\pi\)₂ = \(\pi\)₃ Ha: \(\pi\)₁ ≠ \(\pi\)₂ or \(\pi\)₂ ≠ \(\pi\)₃
• E)None of the above

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Definitions:

Proactive Interference

A phenomenon where old information hinders the recall of newly learned information.

Cue-dependent Forgetting

The inability to recall information in the absence of specific cues or triggers that were present at the time the memory was formed.

Brain Stem

The part of the brain that connects the cerebrum with the spinal cord and controls vital functions such as breathing, heart rate, and blood pressure.

Memories Stored

The process by which information is encoded, stored, and retrieved in the brain for future use.