5. (6 points) A survey was conducted among a random sample of 196 experienced meditators. Their sample mean length of time practicing meditation was 12.5 years with a standard deviation of 11.2. a. (2 points) Based on these data estimate the population length of time practicing meditation among all experience mediators. b. (2 points) Based on these data estimate the standard error of the sample mean c. (2 points) Find a 99% confidence interval for the population length of time practicing meditation among all experience mediators