A University Surveyed Recent Graduates of the English Department for Their

question 74

Multiple Choice

A university surveyed recent graduates of the English department for their starting salaries. Four hundred graduates returned the survey. The average salary was $25,000. The population standard deviation is $2,500. A 95% confidence interval is constructed. What does the confidence interval mean?

• A)The population mean is in the interval.
• B)The population mean is not in the interval.
• C)The likelihood that any confidence interval based on a sample of 400 graduates will contain the population mean is 0.95.
• D)There is a 5% chance that the computed interval does not contain the population mean.

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Definitions:

Intestinal Parasite

Organisms that live and feed inside the human digestive tract, often causing illness or nutrient deficiencies.

Annelids

A phylum of invertebrate worms characterized by their segmented bodies, including earthworms, leeches, and polychaetes.

Cnidarians

A phylum of aquatic invertebrates known for their distinctive body plan featuring a single, central cavity and stinging cells.

Coelom

A body cavity in certain animals, including humans, that is lined by an epithelial layer derived from mesoderm, providing space for the development of internal organs.