A Researcher Want to Test If a Cause-Effect Relationships Exists

question 33

Multiple Choice

A researcher want to test if a cause-effect relationships exists between someone's age and the number of hours of sleep someone needs.She measures age as follows: 0 < 20 years.
0 20 - 50 years.
0 > 50 years.
Furthermore,participants of the research can fill in the number of hours they sleep on average in a day on a dotted line.
What is the most appropriate technique to test the hypothesis that age influences the number of hours someone sleeps?

• A)An independent samples t-test.
• B)A paired samples t-test.
• C)ANOVA.
• D)Discriminant analysis.

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