The Director of a Hospital Wishes to Estimate the Mean

question 73

Multiple Choice

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, x = 19.8 and s2 = 36. If
The director wishes to estimate the mean number of admissions per 24-hour period to within 1
Admission with 90% reliability, what is the minimum sample size she should use?

• A)3508
• B)60
• C)98
• D)2132

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Definitions:

Supercell Clusters

Large-scale convective weather phenomena characterized by severe thunderstorms capable of producing tornadoes and other intense conditions.

Feature Detectors

Neurons in the brain that respond to specific attributes of a stimulus, such as lines, edges, or movements.

Cortical Areas

Regions located in the brain's cortex involved in numerous functions, including sensory perception and cognitive processes.

Subliminally

In a manner that affects someone's mind without them being fully aware of it; influencing subconscious perception.