Shown are ball-and-stick (1) and space-filling (2) models of methane. 
-What hybrid orbitals are used by carbon to form covalent bonds with hydrogen?
Definitions:
Mean Starting
The initial average value from which a process or calculation begins or is derived.
Hypothesis Testing
A method in statistics to determine whether there is enough evidence in a sample of data to infer that a certain condition is true for the entire population.
Population Parameters
The actual values that describe characteristics of an entire population, such as mean, variance, and standard deviation.
Null Hypothesis
A hypothesis in statistics that proposes no significant difference or effect, serving as the default assumption to be tested.
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