Exhibit 8-3
a Random Sample of 81 Automobiles Traveling on a Section

question 35

Multiple Choice

Exhibit 8-3
A random sample of 81 automobiles traveling on a section of an interstate showed an average speed of 60 mph. The distribution of speeds of all cars on this section of highway is normally distributed, with a standard deviation of 13.5 mph.
-Refer to Exhibit 8-3. If the sample size was 25 (other factors remain unchanged) , the interval for $\mu$ would

• A)not change
• B)become narrower
• C)become wider
• D)become zero

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Definitions:

Memory Deficits

Impairments or reductions in the ability to remember or recall information, which can be temporary or permanent, affecting short-term or long-term memory.

Reduced Fertility

A condition characterized by a decreased ability to conceive or produce offspring after trying for a certain period.

Depression

A mental health disorder characterized by persistent feelings of sadness, loss of interest in activities, and can significantly impair daily functioning.

Mesolimbic Dopamine Pathway

A key pathway in the brain associated with the reward system, playing significant roles in motivation, pleasure, and reinforcement.