The Owner of a Local Nightclub Has Recently Surveyed a Random

question 144

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 greater than 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 have a level of significance at 0.01 what conclusion can she make?

• A)There is not sufficient evidence that the mean age of her customers is greater than 30.
• B)There is sufficient evidence that the mean age of her customers is greater than 30.
• C)There is not sufficient evidence that the mean age of her customers is not greater than 30.
• D)There is sufficient evidence that the mean age of her customers is not greater than 30.

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Definitions:

Visual Inspection

The process of examining something closely, primarily using the sense of sight, often to assess its condition or to find defects.

Dislocation

The displacement of a part; usually refers to a bone temporarily out of its normal position in a joint.

Joint Locations

The specific anatomical areas where two or more bones meet, allowing for a variety of movements.

Phantom Limb

An illusion following amputation of a limb that the limb still exists.