An Economist Is Interested in Studying the Incomes of Consumers

question 38

Multiple Choice

An economist is interested in studying the incomes of consumers in a particular country.The
Population standard deviation is known to be $1,000.A random sample of 50 individuals
Resulted in a mean income of $15,000.What total sample size would the economist need to
Use for a 95% confidence interval if the width of the interval should not be more than $100?

• A) n = 1537
• B) n = 385
• C) n = 40
• D) n = 20

Acknowledge the role of style, tone, and formality in business communication.

Recognize the importance of document structure and organizing principles for readability and effectiveness.

Understand how to effectively convey and support arguments or recommendations in business documents.

Appreciate the importance of adapting content for digital platforms and different audience needs.

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Definitions:

Accessory Pigments

Pigments in plants and photosynthetic organisms that capture light energy and transfer it to chlorophyll during photosynthesis.

Chlorophyll A

The primary type of chlorophyll found in green plants and cyanobacteria, which absorbs light most efficiently for photosynthesis.

Aquatic Plant

Plants adapted to living in water environments, playing crucial roles in the ecosystem by providing oxygen and habitat to aquatic life.

Bubbles

Spherical pockets of gas trapped in a liquid or solid form, often visible as balls of air or gas in water or other liquids.