When the Necessary Conditions Are Met,a Two-Tail Test Is Being

question 32

Multiple Choice

When the necessary conditions are met,a two-tail test is being conducted to test the difference between two population means,but your statistical software provides only a one-tail area of 0.036 as part of its output.The p-value for this two-tail test will be:

• A) 0.018.
• B) 0.009.
• C) 0.072.
• D) 0.964.

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Definitions:

Astrocytes

Star-shaped glial cells in the brain and spinal cord, involved in physical and nutritional support for neurons, and the repair and scarring process following central nervous system injury.

Blood-Brain Barrier

A selective semipermeable barrier formed by endothelial cells of the brain's capillaries that protects the brain from harmful substances and pathogens in the bloodstream.

CNS

The central nervous system, comprised of the brain and spinal cord, responsible for processing and sending out neural signals.

Myelin Sheath

A fatty layer that encases the axons of some neurons, significantly increasing the speed at which nerve impulses are conducted.