Which Characteristic Is Not Generally True of a Starburst Galaxy

question 139

Multiple Choice

Which characteristic is not generally true of a starburst galaxy?

• A)Its rate of star formation is many times higher than the rate of star formation in the Milky Way.
• B)Supernovae occur so frequently that their effects combine to drive a galactic wind that blows material into intergalactic space.
• C)The observed features that cause us to classify it as a "starburst" must be only temporary phenomena in the galaxy's history.
• D)The observed features of the starburst are thought to be caused by the presence of a supermassive black hole in the galaxy's center.

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Definitions:

Significance Level

A threshold set by the researcher to determine the point at which the results of a statistical test can be considered to demonstrate a meaningful effect, typically denoted by alpha (α).

Effect Size

A measure of the magnitude of difference between two groups, usually calculated as Cohen’s d.

Significant Difference

A difference between groups or conditions that is unlikely to have occurred by chance alone, according to a predefined threshold of statistical significance.

Independent Samples

Groups in a study or experiment that are randomly assigned and do not influence each other.