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In: Statistics and Probability

What is a p-value and how is it used to make a decision about the null hypothesis?

 

  1. What is a p-value and how is it used to make a decision about the null hypothesis?
  2. How is the p-value related to the test statistic?
  3. Explain whether or not rejecting the null hypothesis makes the alternative hypothesis true and why.
  4. If I conduct a hypothesis testing with Type I error set at 0.05 and a resulting p-value of 0.3, what would my conclusion be?

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