The amount of time (in hours per week) that children spend watching television is value x of random variable X that is approximately normally distributed with the mean and standard deviation , both unknown. A random sample of n = 25 children was surveyed and sample mean number of hours children watched television in week was calculated to be = 27.191 hrs. With a sample standard deviation of s = 7.554 hrs.
Employ the information in II above to determine a 95% confidence interval for µ.