A Random Sample Of $n$ Observations, Selected from a Normal Population, Is Used to Test

question 80

Multiple Choice

A random sample of $n$ observations, selected from a normal population, is used to test the null hypothesis $H _ { 0 } : \sigma ^ { 2 } = 155$ . Specify the appropriate rejection region.
$$H _ { \mathrm { a } } : \sigma ^ { 2 } \neq 155 , n = 10 , \alpha = .05$$

• A) \(\chi ^ { 2 } < 2.70039\) or \(\chi ^ { 2 } > 19.0228\)
• B) \(\chi ^ { 2 } < 3.32511\) or \(\chi ^ { 2 } > 16.9190\)
• C) \(2.70039 < \chi ^ { 2 } < 19.0228\)
• D) \(\chi ^ { 2 } < 3.24697\) or \(\chi ^ { 2 } > 20.4831\)

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The introduction of contaminants into the natural environment that cause adverse change and harm to ecosystems and human health.

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A cost experienced by a third party who did not choose to incur that cost, often related to environmental, social, or health issues.

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Costs that occur when an action has effects, positive or negative, on third parties without those parties being compensated.

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The total cost of an activity, including both private costs borne by the producer and external costs suffered by others.