An Economist Is Interested in Studying the Incomes of Consumers

question 83

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 is the width of the 90% confidence interval?

• A) $232.60
• B) $364.30
• C) $465.23
• D) $728.60

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Definitions:

Bipolar II Disorder

A psychiatric disorder characterized by episodes of significant depression and hypomania, but not the full-blown manic episodes seen in Bipolar I Disorder.

Cyclothymic Disorder

A mood disorder characterized by periods of hypomanic and depressive symptoms that are not severe enough to qualify as bipolar disorder.

Unipolar Depression

A major depressive disorder characterized by a persistent feeling of sadness or a lack of interest in external stimuli, differing from bipolar disorder by the absence of manic or hypomanic episodes.

Dysthymic Symptoms

long-term, chronic symptoms of depression that are less severe than major depressive disorder.