A publisher wants to estimate the mean length of time (in minutes) all adults spend reading newspapers To determine this estimate, the publisher takes a random sample of 15 people and obtains the results below. From past studies, the publisher assumes o is 1.9 minutes and that the population of times is normally distributed 6 9 8 12 6 9 9 12 10 11 6 8 9 7 0 Construct the 90% and 99% confidence intervals for the population mean. Which interval is wider? If convenient, use technology to construct the confidence intervals. The 90% confidence interval is ( (Round to one decimal place as needed.) Incor