Each year, millions of people take trips to theme parks owned by Disney, Universal Studios, Sea World, and others. A survey of 1233 people who took trips revealed that 111 of them included a visit to a theme park. Construct a 94% confidence interval for the true proportion of all people who take trips to a theme park. (15 pts)

a. Identify the parameter and state the best point estimate.

b. Find the Critical Values.