When the Necessary Conditions Are Met, a Two-Tail Test Is $\alpha$

question 44

True/False

When the necessary conditions are met, a two-tail test is being conducted at $\alpha$ = 0.05 to test $H _ { 0 } : \sigma _ { 1 } ^ { 2 } / \sigma _ { 2 } ^ { 2 } = 1$ . The two sample variances are $s _ { 1 } ^ { 2 } = 400$ and $s _ { 2 } ^ { 2 } = 400$ , and the sample sizes are n₁ = 25 and n₂ = 25. The calculated value of the test statistic will be F = 2.

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Definitions:

Electroencephalogram

A test that measures and records the electrical activity of the brain using small, flat metal discs attached to the scalp.

Oscilloscope

Specialized device that serves as a sensitive voltmeter, registering changes in voltage over time.

Neocortex

Most recently expanded outer layer (“new bark”) of the forebrain, composed of about six layers of gray matter. Its name is a misnomer, as it actually isn’t newer because it arose at the same time during evolution as other forms of cortex. It is also called isocortex because it is almost always six-layered, with few exceptions.

Fritsch and Hitzig

Fritsch and Hitzig were pioneering neuroscientists known for their research demonstrating the electrical excitability of the cerebral cortex.