For the Following Hypothesis Test

question 94

Multiple Choice

For the following hypothesis test:

• A) Because the computed value of z = 3.012 is greater than 2.05, accept the null hypothesis and conclude the mean is greater than 45. Also because the p-value is less than 0.02
• B) Because the computed value of z = 3.012 is greater than 2.05, reject the null hypothesis and conclude the mean is greater than 45. Also because the p-value is less than 0.02
• C) Because the computed value of z = 2.087 is greater than 2.05, accept the null hypothesis and conclude the mean is greater than 45. Also because the p-value is less than 0.02
• D) Because the computed value of z = 2.087 is greater than 2.05, reject the null hypothesis and conclude the mean is greater than 45. Also because the p-value is less than 0.02

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Definitions:

Benthic Zone

refers to the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers.

Littoral Zone

The littoral zone is the area of a lake or ocean shore that is close to the shore, often characterized by shallow waters, where sunlight reaches the bottom allowing aquatic plants to grow.

Limnetic Zone

The open water area of a freshwater body, such as a lake, where sunlight penetrates deeply enough for photosynthesis to occur.

Decomposers

Organisms, such as bacteria and fungi, that break down dead organic material, recycling nutrients back into the ecosystem.