. Recent studies have investigated the human need for instant gratification and our growing culture of impatience. In one study, 250 test subjects were timed to see how long they were willing to wait for a video to load on a computer before they abandoned the site. The data yielded a sample mean of 6.2 seconds with a standard deviation of 2.1 seconds. Construct and interpret a 95% confidence interval for the mean download wait time, rounded to 1 decimal place. (4 marks)