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

question 142

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

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Definitions:

Motive

The reason or reasons someone has for acting or behaving in a particular way.

Communication

The act of conveying meanings from one entity or group to another through the use of mutually understood signs, symbols, and semiotic rules.

Weapon Chosen

The specific type of weapon selected or preferred by an individual for use in a particular situation, often reflecting the individual's intent or psychological state.

Social Factors

These are aspects of society that influence individuals' lives, including economic status, culture, and family.