Which of the Following Is correct in Describing the Exxon

question 22

Multiple Choice

Which of the following is correct in describing the Exxon Valdez oil tanker spill?

• A)The spill killed over 50 sea otters,300 birds.
• B)It involved 10 million liters of oil.
• C)The oil spilled from a double-hulled,modern tanker on an assigned route.
• D)Complete clean up of the spill is impossible,and scientists are still finding residual oil.
• E)It contaminated and ruined portions of 240 km of coastline.

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Definitions:

Directional

A hypothesis that specifies the direction of the expected relationship between variables.

Nondirectional

Refers to hypotheses or predictions that do not specify a predicted direction of the relationship between variables.

One-Tailed T Test

A variation of the t-test that is used when a hypothesis predicts the direction of a potential difference between group means; it assesses whether this predicted difference is statistically significant in one specific direction.

Correlations

A statistical measure that expresses the extent to which two variables change together.