When Testing the Difference Between Two Population Proportions Using Large,independent

question 20

Multiple Choice

When testing the difference between two population proportions using large,independent random samples,the appropriate test statistic is based on the ____ distribution.

• A)z
• B)t
• C)F
• D)chi-square
• E)exponential

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Definitions:

Lava Dome

A dome-shaped mountain or hill of at least partly solidified lava generally of felsic to intermediate composition.

Lava Flow

Magma that erupts onto the surface and flows downhill from the vent; also the solidified body of rock formed by this magma.

Pyroclastic Flow

A fast-moving current of hot gas and volcanic materials that flows down the sides of a volcano during an explosive eruption.

Eruption Column

A column of gases, ash, and volcanic rock emitted into the atmosphere during a volcanic eruption, which can affect climate and aviation.