The Survival Times of Adult Mosquitoes Exposed to a Commonly

question 13

Multiple Choice

The survival times of adult mosquitoes exposed to a commonly used synthetic pesticide (Phenothrin) follow a normal distribution, with a standard deviation of 15.18 sec.A random sample of 40 mosquitoes has an average survival time of 47.5 sec.What is a 99% confidence interval for the mean survival time?

• A) (41.318, 53.682)
• B) (41.916, 53.083)
• C) (42.700, 52.300)
• D) (8.399, 86.601)

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Definitions:

Psychomotor Atrophy

The deterioration of cognitive, emotional, and physical abilities due to underutilization or neuron degeneration.

Psychotic

Relating to psychosis, a mental disorder characterized by a disconnection from reality, which may include hallucinations and delusions.

Major Depression

A condition of mental well-being defined by an enduring period of depression or diminished interest in pursuits, resulting in major disruptions in daily living.

Catatonic

Relating to or characterized by catatonia, a state of immobility and unresponsiveness in someone who is otherwise awake.