When Testing H₀ $\sigma$ ₁² $\le$ $\sigma$ ₂² H_A $\sigma$ ₁²> $\sigma$ ₂² Where S₁² =

question 83

Multiple Choice

When testing H₀: $\sigma$ ₁² $\le$ $\sigma$ ₂² H_A: $\sigma$ ₁²> $\sigma$ ₂² where s₁² = .004,s₂² = .002,n₁ = 4,n₂ = 7 at $\alpha$ = .05,what critical value do we use?

• A)1.833
• B)1.796
• C)4.12
• D)4.76

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Definitions:

Subscripts

Small numbers in a chemical formula that indicate the number of atoms of the element directly before the subscript in the molecule.

Reactants

Original substances involved at the beginning of a chemical reaction, used throughout to form the end products.

Chemical Equation

A representation of a chemical reaction using symbols of the elements and formulae of compounds.

Coefficients

Numbers placed before the symbols or formulas in a chemical equation, indicating the relative amounts of substances involved in the reaction.