The Figures Used in Calculating the Test Statistic X² =

question 87

True/False

The figures used in calculating the test statistic X² =
are the observed and expected numbers in each of the k categories.However,it is correct,for example,to use instead the percentages of sample members in each category.

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Definitions:

Evaporation

The process by which water changes from a liquid to a gas or vapor.

Organic-rich Black Shale

Sedimentary rocks that contain high amounts of organic matter, typically appearing dark in color, and are potentially sources of fossil fuels.

Silica-rich Creatures

Marine organisms that have skeletons made primarily of silica, such as diatoms and certain types of sponges.

Gradational Boundaries

Transition zones where different geological formations or ecosystems meet and blend without a clear-cut separation.