- Use appropriate notation for statistical terms.
The formula for the test statistic to compare two population means contains multiple values for the sample mean, sample standard deviation, sample size, and population mean.
A statistic is a number that we calculate from a sample. For the mean, the notations are:
- [latex]\mu[/latex] represents the parameter, a population mean.
- [latex]\bar{x}[/latex] is the notation for a sample mean, a statistic.