As an Aid to the Establishment of Personnel Requirements, the Director

question 100

Multiple Choice

As an aid to the establishment of personnel requirements, the director of a hospital wishes to estimate the mean number of people who are admitted to the emergency room during a 24-hour period. The director randomly selects 64 different 24-hour periods and determines the number of admissions for each. For this sample, = 19.8 and S² = 25. Which of the following assumptions is necessary in order for a confidence interval to be valid?

• A) The population sampled from has an approximate normal distribution.
• B) The population sampled from has an approximate t distribution.
• C) The mean of the sample equals the mean of the population.
• D) None of these assumptions are necessary.

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Definitions:

Aggregate Demand

The holistic demand for goods and services throughout an economy, estimated at a predetermined price level over a particular period.

Active Approach

A proactive strategy in management or policy-making that involves taking deliberate actions to achieve specific goals.

Aggregate Supply

The sum total of products and services that corporations in an economic system plan to offer for sale during a given time frame.

Recessionary Gap

A situation where an economy's real GDP is lower than its potential GDP, leading to unemployment and underutilized resources.