Estimating the population mean

It is often not enough to simply describe a set of data. Instead you want to make inferences about the parameters of the population the sample of data is drawn from. An inference may be an estimate of a parameter, or a hypothesis test if a parameter is equal to a specific value.

  1. On the Analyse-it ribbon tab, in the Distribution group, click Estimate Parameter > Mean.

    The location estimator is added to the analysis task pane.

  2. Click Recalculate.
    The results are recalculated and the analysis report updates.

The mean estimate is 26.2 and a 95% confidence interval estimate 23.6 to 28.9.

(click to enlarge)