A Sample of 25 Observations Is Taken from a Process $\bar { p }$

question 24

Multiple Choice

A sample of 25 observations is taken from a process (an infinite population) . The sampling distribution of $\bar { p }$ is _____.

• A) not normal since n < 30
• B) approximately normal because \(\bar { p }\) is always normally distributed
• C) approximately normal if np ? 5 and n(1 - p) ? 5
• D) approximately normal if np > 30 and n(1 - p) > 30

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Definitions:

Normal Goods

Goods for which demand increases as the income of the consumer increases, exhibiting a direct relationship between income and demand.

Complementary Goods

Goods that are typically consumed together, such that the demand for one increases when the price of the other decreases.

Substitute Goods

Goods that can be used in place of each other, where an increase in the price of one leads to an increase in demand for the other.

Independent Goods

Products or services whose demand is not directly related to the demand for other goods; their consumption or purchase does not affect the consumption or purchase of other products.