Life Tests Performed on a Sample of 13 Batteries of a New

question 4

Multiple Choice

Life tests performed on a sample of 13 batteries of a new model indicated: (1) an average life of 75 months, and (2) a standard deviation of 5 months.Other battery models, produced by similar processes, have normally distributed life spans.The 98% confidence interval for the population mean life of the new model is _________.

• A)63.37 to 86.63
• B)61.60 to 88.41
• C)71.77 to 78.23
• D)71.28 to 78.72
• E)79.86 to 81.28

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Definitions:

Cranial Nerves

Nerves that emerge directly from the brain, including the brainstem, responsible for sensory and motor functions of the head and neck.

Hypoglossal

Relating to the twelfth cranial nerve, which controls the muscles of the tongue, essential for swallowing and speech.

Emotional Pain

A deeply unpleasant emotional response resulting from significant loss, social rejection, or emotional neglect.

Somatosensory Cortex

A region of the brain that processes sensory information from various parts of the body, including touch, pain, and temperature.