Question

Collect data and construct a confidence interval for a proportion for which you already know the answer. Use a sample of at least 100. You can select the situ­ation for which you would like to do this. For example, you could flip a coin 100 times and construct a confidence interval for the proportion of heads, knowing that the true proportion is .5. Report how you collected the data and the results you found. Explain the meaning of your confidence interval, and compare it to what you know to be the truth about the proportion of interest.

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