1. Section 3: Estimating p in a binomial distribution
Chapter 8: Estimation
Section 3: Estimating p in a binomial distribution

2. Example
Student Council plans to have the student body vote on a proposal and wishes to estimate the proportion of voters (students) favoring the proposal. Student council obtains a random sample of 100 voters and 54 favor the proposal. Find a 95% confidence interval for p.
Population – collection of all voters (student body)
p = probability of success
q = probability of failure (1 – p)
n = # of trials (# voters in sample)
r = number of successes

3. Point Estimate for p

4. Confidence Interval