In a Two-Tail Test for the Population Mean,the Null Hypothesis

question 50

Multiple Choice

In a two-tail test for the population mean,the null hypothesis will be rejected at α level of significance if the value of the standardized test statistic z is such that:

• A)z > zα
• B)z < −zα
• C)−zα < z < zα
• D)| z | > zα _{/ 2}

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Definitions:

Salvage Value

The calculated final value of an asset at the conclusion of its operational period.

Simple Rate of Return

A metric that calculates the percentage of profit or loss on an investment relative to its initial cost.

Operating Expenses

Regular expenses incurred in the day-to-day functioning of a business, excluding the cost of goods sold.

Sales Revenues

The income earned from selling goods or services before any costs or expenses are deducted.