1. Reese believes the students in her large high school spend way too much time on their phones and other devices. To investigate, she estimates the mean amount of daily screen time for all the students in her school by taking a random sample of 50 students. She finds the average daily screen time for the members of the sample is x = 7.1 hours with a standard deviation of s, = 2.4 hours. (a) Construct and interpret a 90% confidence interval for the mean amount of daily screen time for all the students in this school. Snooifin name of the procedure:​