A Large Trucking Company Wants to Estimate the Proportion of Its

question 89

Multiple Choice

A large trucking company wants to estimate the proportion of its tractor truck population with refrigerated carrier capacity.A random sample of 200 tractor trucks is taken and 30% of the sample have refrigerated carrier capacity.The 95% confidence interval to estimate the population proportion is _______.

• A)0.53 to 0.67
• B)0.25 to 0.35
• C)0.24 to 0.36
• D)0.27 to 0.33
• E)0.28 to 0.34

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Definitions:

Medulla Oblongata

A portion of the brainstem responsible for autonomic functions such as breathing, heart rate, and blood pressure control.

Midbrain

A part of the brainstem involved in functions such as vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.

Diencephalon

A part of the brain containing elements including the thalamus and hypothalamus, responsible for sensory processes and involuntary bodily operations.

Flocculonodular Lobe

The flocculonodular lobe is a region of the cerebellum involved in balance and eye movements.