The Researcher's Null Hypothesis Is H₀: σ² ≤ 22

question 48

Multiple Choice

The researcher's null hypothesis is H₀: σ² ≤ 22. A sample of n = 25 items yields a sample variance of s² = 28.5. The critical value of chi-square for a right-tailed test at α = .05 is:

• A)1.960
• B)1.645
• C)13.85
• D)36.42

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Definitions:

Existential Import

In logic, the presumption that a statement implies the existence of the subject it mentions.

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Existential Import

The implication that a categorical proposition presupposes the existence of the subject about which it makes a statement.

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