Question 1: Each of the following proportions is based on survey responses. For each proportion, use the ±2 rule of thumb to determine the 95 percent confidence interval.
A. When asked if they are satisfied with their financial situation, .29 said "very satisfied" (n = 121).
B. When asked if people can be trusted, .32 said "yes" (n = 100).
C. Of the individuals in a survey, .40 still live in the same city they lived in when they were 16 years of age (n = 225)