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:

Aggregates

Collections or clusters of objects, often used in the context of materials science (for composite materials) or data (for information grouping).

Helper T Cell

Subset of T lymphocytes that increases the activity of B cells and T cells.

Cytokines

Small proteins released by cells, especially in the immune system, that have a specific effect on interactions and communications between cells.

Effector T Cells

A type of T cell that actively responds to a pathogen by directly killing infected host cells or by signaling other immune responses.