many group projects have tried to investigate the impact of Juggling a job with schoolwork. One of the groups from a previous semester surveyed 62 full-time Mesa students and ask their work hours. There's sample had a sample mean of 15.7 hours per week with a standard deviation of 13.2 hours. Use the space below to calculate a 95% confidence interval for the true mean amount of hours full-time Mesa students work each week. please help