Which of the Following Is Needed Before a Confidence Interval

question 1

Multiple Choice

Which of the following is needed before a confidence interval can be established for a population mean?

• A)A confidence level
• B)A point estimate of the population mean
• C)An estimate of the sampling error associated with the sample mean
• D)All of the above.
• E)Both a and b.

---

Definitions:

Somatic Nervous

Part of the peripheral nervous system that controls voluntary movements of the body and transmits sensory information to the central nervous system.

Peripheral System

Refers to the peripheral nervous system, which consists of all the nerves that branch out from the brain and spinal cord (central nervous system) to the rest of the body, facilitating communication between the CNS and the limbs and organs.

Autonomic Nervous

Part of the nervous system that controls involuntary actions of the visceral muscles and internal organs, including heart rate, digestion, and respiratory rate.

Brain

The central organ of the human nervous system, housed in the skull and responsible for controlling and coordinating all voluntary and involuntary activities, along with processing sensory information.