For a Z-Statistic of 1

question 45

Multiple Choice

For a z-statistic of 1.89, one would conclude (for a two-tailed test) the score is ______.

• A) significant only at the .05 level
• B) significant at both the .05 level and the .01 level
• C) not significant
• D) not significant at the .05 level but is significant at the .01 level

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Definitions:

Oil Spills

The release of liquid petroleum hydrocarbon into the environment, particularly marine areas, causing pollution and harm to wildlife and ecosystems.

Groundwater's Temperature

The thermal condition of water stored underground in aquifers, which can vary depending on depth, geographical location, and season.

Harmful Algal Blooms

Overgrowths of algae in water that can produce dangerous toxins, negatively affecting aquatic life, pets, and people, and harming the environment.

Nitrate

A compound containing nitrogen and oxygen, commonly found in fertilizers, and can lead to environmental concerns such as water pollution and eutrophication when present in high levels.