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:

Shredding

The process of cutting or tearing sensitive or confidential documents into unreadable pieces to protect information security.

Contingency Fee

A legal fee that consists of a specified percentage of the amount the plaintiff recovers in a civil lawsuit. The fee is paid only if the plaintiff wins the lawsuit or recovers damages.

Hourly Fees

Charges or costs calculated based on the amount of time spent on providing services, typically expressed per hour.

Backing Up Data

The process of copying files or databases so that they will be preserved in case of equipment failure or other catastrophe.