Not necessarily.
For instance, one can calculate a so-called 't' statistic as a way of testing an hypothesis about one or two population means. Notice that in this case the statistic does not describe a population characteristic.
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a summary measure that is computed to describe a characteristic of an entire population is called:
this is false... a parameter is a measure of a mean or mode, a measurable characteristic of a sample is called a statistic.
parameter
paremeter
It describes the "middle" of the data set.It describes the "middle" of the data set.It describes the "middle" of the data set.It describes the "middle" of the data set.