Question: What is the test statistic and how do you find it? What are the conditions for using the standard deviation formulawhen working with a sampling

  1. What is the test statistic and how do you find it?
  2. What are the conditions for using the standard deviation formulawhen working with a sampling distribution of proportions?
  3. What are the conditions for using the Normal approximation for a sampling distribution of proportions?
  4. Describe the Central Limit Theorem.
  5. How doe increasing the sample size of a random sample affect the bias of a survey or poll? How does it affect the variability?
  6. Explain the process of creating a confidence interval.
  7. What is the difference between a z distribution and a t distribution? When would you use each of them?
  8. What is margin of error?

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