Use the Formula to Calculate the 90% Confidence Interval

question 53

Multiple Choice

Use the formula to calculate the 90% confidence interval for a sample of N = 12 with a mean = 4.00 and standard error of the mean = .58.

• A) 90% CI = 4.00 ± 1.04
• B) 90% CI = 4.00 ± 1.80
• C) 90% CI = 4.00 ± 2.38
• D) 90% CI = 4.00 ± 1.28

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Definitions:

Corpus Callosum

A thick bundle of nerve fibers that connects the cerebral hemispheres.

Lateral Sulcus

A prominent feature of the human brain's cerebral cortex, which separates the temporal lobe from the frontal and parietal lobes.

Gyrus

A ridge on the surface of the brain, characterized by its folds; the plural form is gyri, and these structures increase the brain's surface area and cognitive ability.

Visual Reflexes

Involuntary responses to visual stimuli, such as blinking or pupil contraction.