Question: Suppose you compute a confidence interval with a sample size of 100. What will happen to the confidence interval if the sample size decreases to

  1. Suppose you compute a confidence interval with a sample size of 100. What will happen to the confidence interval if the sample size decreases to 80?

  1. In 2013, Gallup conducted a poll and found a 95% confidence interval of 0.52

  1. In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and developmental," 2008). Find the proportion of ASD in Arizona with a confidence level of 99%.

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