The Owner of a Local Nightclub Has Recently Surveyed a Random

question 114

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 shewants to have a level of significance at 0.01, what decision should she make?

• A)Reject H0.
• B)Reject H1.
• C)Do not reject H0.
• D)We cannot tell what her decision should be from the information given.

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Definitions:

General Population

The total group of individuals in a demographic area or of a particular demographic characteristic.

Percent

A part or other object per hundred, used in calculations to express proportions, fractions, or percentages.

Genes

Sequences of DNA or RNA that are located on chromosomes and that encode the instructions for synthesizing proteins, playing a crucial role in determining hereditary traits.

Genetic Test

A laboratory technique used to identify changes in chromosomes, genes, or proteins, aiding in the diagnosis or prediction of genetic disorders.