If We Are Interested in Testing Whether the Proportion of Items

question 15

Multiple Choice

If we are interested in testing whether the proportion of items in population 1 is larger than the proportion of items in population 2, the

• A)null hypothesis should state P₁ - P₂ < 0
• B)null hypothesis should state P₁ - P₂ > 0
• C)alternative hypothesis should state P₁ - P₂ > 0
• D)alternative hypothesis should state P₁ - P₂ < 0

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Definitions:

Frequency Theory

The hypothesis that the frequency of a sound wave is directly related to the perception of the sound's pitch, as the auditory nerve fires at the same rate as the sound frequency.

Timbre

The quality or color of sound that distinguishes different types of sound production, such as voices or musical instruments.

Overtones

Additional, often subtle, qualities or implications beyond the explicit or primary meaning of something.

Trichromatic Theory

A theory of color vision that proposes three types of color receptor cells in the eye, each sensitive to red, green, or blue.