Exhibit 8-2
a Random Sample of 121 Automobiles Traveling on an Interstate

question 67

Multiple Choice

Exhibit 8-2
A random sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph. From past information, it is known that the standard deviation of the population is 22 mph.
-Refer to Exhibit 8-2. If the sample size was 100 (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:

Organic Farming

An agricultural method that involves growing and nurturing crops without the use of synthetic pesticides, fertilizers, or genetically modified organisms.

Fish Ranching

A practice of raising fish in a controlled environment until they reach a certain size, and then releasing them into the wild for commercial harvesting at a later time.

Commercial Basis

The foundation or terms under which commercial activities are conducted, often involving considerations of cost, profit, and scalability.

Economically Successful

describes entities, such as businesses or countries, that achieve a high level of financial growth, stability, and wealth creation over time.