Wishes to know the mean number of words a third grader can read per minute. She wants to make an estimate at the 80%80% level of confidence. For a sample of 143143 third graders, the mean words per minute read was 25.125.1. Assume a population standard deviation of 33. Construct the confidence interval for the mean number of words a third grader can read per minute. Round your answers to one decimal place.