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5 November, 03:48

If a research team increases the sample size for a study, the power of their statistical tests will:

a) stay the same,

b) decrease,

c) increase

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Answers (1)
  1. 5 November, 03:53
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    Answer: c) increase

    Step-by-step explanation:

    A sample is a finite subset of the entire population on which research statistical test regarding his / her objective.

    As the sample size increases it comes closer to the population size, and so converge to a better result of researcher's analysis.

    It means the size of the sample is proportional to the power of their statistical tests.

    ∴ As the size of the sample increases the power of statistical test increases.

    Hence, If a research team increases the sample size for a study, the power of their statistical tests will increases.

    Therefore, the correct answer is : c) increase
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