Example Question #1 : Populations And Samples
Which of the following is not considered to be a test statistic of a sample population?
None of these
A sample statistic is a calculation that describes a sample. Samples are representative of larger populations; therefore, test statistics provide us with insights of larger populations. On the other hand, populations are entire groups that are described by parameters. The greek letter mu—or —is a population parameter that summarizes the population mean. The other choices are test statistics for the mean, standard deviation, and variance.