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What is the confidence interval

Assignment Help Basic Statistics
Reference no: EM132846750

The direct link is:https://www.rossmanchance.com/applets/ConfSim.html

In this applet, is the population proportion. It is automatically set to 0.5. n is the sample size and it is automatically set to 100. We are going to use this applet to calculate confidence intervals.

  1. Set the confidence interval to 95% and plug in 1 for "intervals" (This is how many samples you want the applet to simulate and calculate the confidence interval). Click Sample.
  2. What is p-hat?
  3. What is the confidence interval (you can approximate this from the picture)?
  4. Did the interval capture the true population proportion?
  5. Change the confidence level to 99% and click recalculate. What do you notice about the width of the interval?
  6. Change the confidence level to 90% and click recalculate. What do you notice about the width of the interval compared to 95%?

Reference no: EM132846750

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