The Owner of a Local Nightclub Has Recently Surveyed a Random

question 47

Multiple Choice

The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to determine whether or not the mean age of her customers is over 30. If so, she plans to alter the entertainment to appeal to an older crowd. If not, no entertainment changes will be made. Suppose she found that the sample mean was 30.45 years and the sample standard deviation was 5 years. If she wants to be 99% confident in her decision, what decision should she make?

• A) Reject H₀.
• B) Accept H₀.
• C) Fail to reject H₀.
• D) We cannot tell what her decision should be from the information given.

---

Definitions:

Organization

An entity comprising multiple people, such as a company or society, structured to achieve a particular aim or set of goals.

Verbatim Information

Information that is repeated or conveyed in exactly the same words as originally presented or spoken.

Gist

The main or essential part of a matter; the core idea or summary of information.

Elaboration

The process of adding more detail or information to something, often to clarify or enhance understanding.