In a Hypothesis Test for the Population Variance, the Hypotheses $H _ { 0 } : \sigma ^ { 2 } = 25$

question 26

Multiple Choice

In a hypothesis test for the population variance, the hypotheses are: $H _ { 0 } : \sigma ^ { 2 } = 25$ . $H _ { 1 } : \sigma ^ { 2 } > 25$ . If the sample size is 15 and the test is being carried out at the 5% level of significance, the null hypothesis will be rejected if:

• A) \(\chi ^ { 2 } < 6.5706\) .
• B) \(\chi ^ { 2 } > 24.9958\) .
• C) \(\chi ^ { 2 } < 7.2609\) .
• D) \(\chi ^ { 2 } > 23.6848\) .

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Definitions:

Variable Selling Costs

Expenses that change in proportion to the volume of sales, such as commissions and shipping costs.

Sales Forecasts

Projections of future sales revenue, based on market analysis, historical data, and other estimations.

Actual Costs

The real costs incurred in the production of goods or services, including all direct and indirect expenses.

Inefficient Divisions

Parts of an organization that operate with lower productivity or effectiveness compared to expected standards.