The heights of 20- to 29-year-old females are known to have a population standard deviation 1) = 2.7 inches. A simple random sample of n = 15 females 20 to 29 years old results in the following data:
63.1 67.9 64.8 62.2 65.4
63.3 66.2 68.2 69.7 64.1
68.4 69.9 67.3 64.5 70.2