A Sample Standard Deviation and Sample Size Are Given $\chi ^ { 2 }$

question 35

Multiple Choice

A sample standard deviation and sample size are given. Use the one-standard-deviation $\chi ^ { 2 }$ -test to conduct the required hvpothesis test.
- $\mathrm { s } = 6 , \mathrm { n } = 10$
$\mathrm { H } _ { 0 } : \sigma = 7 , \mathrm { H } _ { \mathrm { a } } : \sigma \neq 7 , \alpha = 0.05$

• A)Test statistic: \(X ^ { 2 } = 6.612\), Critical values \(= 3.325,16.919\). Do not reject \(\mathrm { H } _ { 0 }\).
• B) Test statistic: \(\mathrm { X } ^ { 2 } = 12.25\), Critical values \(= 2.700,19.023\). Do not reject \(\mathrm { H } _ { 0 }\).
• C) Test statistic: \(X ^ { 2 } = 6.612\), Critical values \(= 2.700,19.023\). Do not reject \(\mathrm { H } _ { 0 }\).
• D) Test statistic: \(X ^ { 2 } = 12.25\), Critical values \(= 3.325,16.919\). Reject \(\mathrm { H } _ { 0 }\).

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Definitions:

Semantic Memory

General knowledge, as opposed to episodic memory.

Thalamus

An area near the center of the brain involved in the relay of sensory information to the cortex and in the functions of sleep and attention.

Limbic System

A complex system of nerves and networks in the brain, involved with instinct and mood. It controls the basic emotions (fear, pleasure, anger) and drives (hunger, sex, dominance, care of offspring).

Memory Processes

The mental functions involved in acquiring, storing, and retrieving information.