A catalog sales company promises to deliver orders placed on the Internet within 3 days.​ Follow-up calls to a few randomly selected customers show that a​ 95% confidence interval for the proportion of all orders that arrive on time is 70​%±88​%.
A. What does this​ mean? For each​ conclusion, state whether it is correct or not and explain why. Complete parts a through e below. ​
B. Between 62​% and 78​% of all orders arrive on time. State whether the conclusion is correct or not and explain why. Choose the correct answer below.