In Interval Estimation, the T Distribution Is Applicable Only When

question 45

Multiple Choice

In interval estimation, the t distribution is applicable only when

• A) the population has a mean of less than 30.
• B) the sample standard deviation is used to estimate the population standard deviation.
• C) the variance of the population is known.
• D) the mean of the population is unknown.

---

Definitions:

Optic Chiasm

The part of the brain where the optic nerves partially cross, located at the base of the brain and is crucial for visual processing.

Lens

A curved piece of glass or other transparent material used in optical devices to focus or disperse light and form images.

Microelectrodes

Small electrodes used to record electrical activity from single neurons or to stimulate precise areas in the brain or nervous system.

Visual Cortex

The part of the cerebral cortex that receives and processes sensory nerve impulses from the eyes.