The Null Hypothesis in a Chi-Squared Test of a Contingency

question 170

Short Answer

The null hypothesis in a chi-squared test of a contingency table is that the two nominal variables are ____________________.

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Definitions:

Photosynthetic Organisms

Organisms capable of photosynthesis, a process that converts light energy into chemical energy, typically involving the production of oxygen from carbon dioxide.

Carbon Dioxide

Created both by the burning of organic matter and the act of respiration, this gas, which neither has color nor a detectable odor, is essential for plant photosynthesis.

Phosphorus Sink

An ecosystem or part of an ecosystem that absorbs more phosphorus than it releases, often leading to phosphorus accumulation.

Mineable Phosphate Rocks

Rock formations that contain substantial amounts of phosphate minerals, which are mined for use as fertilizers and other chemical products.