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

question 23

Multiple Choice

The researcher's null hypotheses is H₀: σ² ≤ 22. A sample of n = 25 items yields a sample variance of s² = 28.5. The test statistic is:

• A)31.09.
• B)26.42.
• C)must know if it is a one-tailed test.
• D)must know α to answer.

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Definitions:

Pairs

Two things considered together because of similarity, opposition, or adjacency; often used in context to describe complementary items or concepts.

Marginal Cost

The outlay for creating another unit of a product or service.

Economies of Scale

Cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output generally decreasing with increasing scale.

Output

The total amount of goods or services produced by a company, industry, or economy within a specific period.