A catalog sales company promises to deliver orders placed on the Internet within 3 days. Follow-up calls to a few randomly sele
cted 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.
Answer: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.
