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When the necessary conditions are met, a two-tail test is being conducted at = 0.10 to test H0: = 1. The two sample variances are = 736 and = 1024, and the sample sizes are n1 = 16 and n2 = 25. The rejection region is F > 2.11 or F < 0.4367.
Oldest Rock
The earliest forms of solid rock on Earth, providing evidence of the planet's geological history and surface conditions.
Billion Years
A time scale used in geology and astronomy to describe events or processes that happened a billion years ago or the age of geological formations.
Isotopic Age
The determination of the age of a mineral, rock, or geologic event based on the ratio of parent isotopes to daughter isotopes within a given system.
Geologic Timescale
A dating system used chronologically by geologists and other scientists to detail the timing and relationships of historical events on Earth.
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