In a Two-Tailed Hypothesis About a Population Mean with a Sample

question 92

Multiple Choice

In a two-tailed hypothesis about a population mean with a sample size of 100, $\sigma$ is known, and α = 0.05, the rejection region would be _______.

• A)z > 1.64
• B)z > 1.96
• C)z < -1.96 and z > 1.96
• D)z < -1.64 and z > 1.64
• E)z < -2.33 and z > 2.33

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Definitions:

Shutdown Point

The shutdown point is the level of output and price at which a business covers its variable costs; operating below this point would lead the firm to losses greater than its fixed costs.

AVC (Average Variable Cost)

The cost of labor, materials, and other variable inputs divided by the quantity of output produced.

MC (Marginal Cost)

The increase in total production cost that comes from making or producing one additional unit of a product or service, a concept critical in economic theory for determining the optimal production level.

Shutdown Point

The level of production and price where a firm's total revenue just covers its variable costs, below which it would cease operations.