The Sketch Above Shows Groups of Stars on the H-

question 33

Multiple Choice

The sketch above shows groups of stars on the H- R diagram, labeled (a) through (e) ; note that (a) represents the entire main sequence while (c) and (d) represent only small parts of the main sequence. Which group represents stars that have no ongoing nuclear fusion?

• A)a
• B)b
• C)c
• D)d
• E)e

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Definitions:

Alpha

In statistics, often refers to the significance level used in hypothesis testing, typically set at 0.05 or 0.01, representing the probability of incorrectly rejecting the null hypothesis.

Alpha

In statistics, the threshold of probability at which the null hypothesis is rejected, often set at 0.05 or 5%.

Type I Error

The error that occurs in hypothesis testing when a true null hypothesis is incorrectly rejected, falsely indicating a significant effect or difference.

Alpha

A threshold value used in hypothesis testing that defines the maximum probability of committing a Type I error.