A researcher is interested in determining how many cat owners have adopted their cats from an animal shelter or humane society. To determine this, he conducts a survey consisting of 675 cat owners, and finds that 209 of them adopted their cats through a shelter.
1. (2 points) Find the point estimate for the population proportion of people that have adopted their cats from an animal shelter or humane society.
2. (4 points) Construct a 95% confidence interval for the population proportion of people that have adopted their cats from an animal shelter or humane society.
3. (4 points) Interpret the interval from part (b).