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 90% confidence interval for the proportion of all orders that arrive on time is 89%plus or minus5%. what does this mean? are the conclusions below correct? explain. a )between 84% and 94% of all orders arrive on time. b )90% of all random samples of customers will show that 89% of orders arrive on time. c )90% of all random samples of customers will show that 84% to 94% of orders arrive on time. d )the company is 90% sure that between 84% and 94% of the orders placed by the customers in this sample arrived on time. e )on 90% of the days, between 84% and 94% of the orders will arrive on time. a) choose the correct answer below. a. this statement is correct. b. this statement is not correct. no more than 94% of all orders arrive on time. c. this statement is not correct. at least 84% of all orders arrive on time. d. this statement is not correct. it implies certainty. Get the answer
Category: biomedicalengineering | Author: Sagi Boris