Question: How do you find the margin of error from the lower and upper bounds of a confidence interval? What is the effect of increasing the

  1. How do you find the margin of error from the lower and upper bounds of a confidence interval?
  2. What is the effect of increasing the standard deviation on the margin of error?
  3. Why does increasing the confidence level result in a larger margin of error?
  4. Why would you be more likely to use a T-interval in a real-world situation than a Z-interval?
  5. When do you use the t-distribution to determine the confidence interval for the mean?

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