Estimation (From Sample Mean to Population Mean) of Experimental Data
As pointed out in Chapter 18, the mean is the most significant statistic of a given set. The mean of the sample set A—56.4, 57.2, 55.9, 56.2, 55.6, 57.1, and 56.6—is 56.43. This is called the sample mean, X, and when it is used as an estimator of the population mean, fl, it is