The time that students spend at part time jobs per week is approximately Normally distributed with standard deviation 8 hours. A random sample of 130 students is taken and the sample mean is 11.4 hours.
How do I find the 90% lower confidence limit for the true mean (mu)? How do I find the 90% upper confidence limit for the true mean (mu)? . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
