Question: Both Confidence Intervals (CI) and Hypothesis Tests use a sample. In your own words, What is the purpose of a sample in CI and how

Both Confidence Intervals (CI) and Hypothesis Tests use a sample. In your own words, What is the purpose of a sample in CI and how does the confidence level (such as 90%, 95% or 99%) relate to the sample? What is the purpose of a sample in Hypothesis Testing and how does the P-value relate to the sample

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