The Sun

question 74

Multiple Choice

The Sun

• A) generates energy through fission.
• B) actually plays a minor role in energizing Earth's life forms.
• C) is a relatively large star.
• D) is the closest galaxy to Earth.
• E) is a star of average size.

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Definitions:

Z-test

A method of statistical analysis that evaluates whether there is a significant difference between the means of two populations, given known variances and a large sample size.

µ = 109

Represents the mean (µ) of a dataset or distribution, here specifically stated as 109.

Z-statistic

A specific kind of norm score that shows the number of standard deviations by which an individual item deviates from the distribution's average.

Critical Value

The threshold in a statistical test that defines the boundary for rejecting the null hypothesis.