What Quantities Must Be Measured in Order to Calculate the Luminosity

question 54

Multiple Choice

What quantities must be measured in order to calculate the luminosity of a star?

• A) brightness and radius
• B) radius and distance
• C) temperature and distance
• D) brightness and distance

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Definitions:

Planned Comparisons

Comparisons built into a research design prior to data collection.

F-ratio

A ratio used in ANOVA tests to determine whether the variances between means are significantly different.

T-test

A statistical test used to compare the means of two groups to determine if there is a significant difference between them.

Null Hypothesis

The default assumption that there is no significant difference or effect, serving as the claim that the study seeks to test or refute.