Which of the Following Is NOT an Example of a Cosmological

question 54

Multiple Choice

Which of the following is NOT an example of a cosmological investigation?

• A) using supernovas to understand the stellar population
• B) using Cepheid variables to measure the Hubble constant
• C) using the cosmic microwave background to measure the geometry of the Universe
• D) characterizing the average abundance of different elements in the Universe

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Definitions:

Test Statistic

A calculated value from sample data used in a hypothesis test to determine whether to reject the null hypothesis.

Critical Value

A critical value is a threshold or cut-off value that defines regions where the test statistic leads to the acceptance or rejection of the null hypothesis in hypothesis testing.

Frequency Distributions

A statistical analysis tool that shows how often each different value in a set of data occurs, often illustrated as a table or graph.

Wilcoxon Signed-Rank Sum Test

This is a type of statistical test that doesn't rely on predefined parameters and is utilized to analyze whether two related samples, matched samples, or repeated measures on a single sample have differing population mean ranks.