A catalogue 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 .88 +/- .06. What choices below correctly describe this confidence interval?
We are 95% confident that between .82 and .94 of the orders placed by the customers in this sample arrived on time.
95% of all random samples of customers will show that .88 of orders arrive on time.
On 95% of the days, between .82 and .94 of the orders will arrive on time.
The probability is .95 that the true proportion of customers who receive their orders on time is in the interval (.82, .94).
Between .82 and .94 of all orders arrive on time.
We are 95% confident that the interval (.82, .94) contains the true, but unknown, proportion of all orders that arrive on time.
95% of all random samples of customers will show that .82 to .94 of orders arrive on time.