If a Star's Spectrum Does Not Contain Spectral Lines Characteristic

question 73

Short Answer

If a star's spectrum does not contain spectral lines characteristic of a certain element,can we conclude that the star does not contain that element? Why or Why not?

Develop a research plan including specifying constraints and determining data collection methods.

Recognize the importance of collecting relevant information in marketing research.

Analyze and interpret marketing research findings to make informed decisions.

Understand the role of measures of success in evaluating marketing research outcomes and actions.

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Definitions:

Nondirectional Correlation

A type of correlation where the direction (positive or negative) of the relationship between variables is not specified.

Statistically Significant

A determination that an observed effect in a study is unlikely to have occurred due to chance alone.

Causality

The relationship between cause and effect, where one event (the cause) is understood to directly result in the occurrence of another event (the effect).

Probability Level

The likelihood or chance that a particular event will occur, often measured by a numerical value ranging from 0 (impossibility) to 1 (certainty).