import statdialog.statistics.inference.OneSampInferenceDialog;

st = new String[]{"Sales"};

new OneSampInferenceDialog("Mean Estimation", st).

oneSampInferenceDialog.setVisible(true);

new OneSampInferenceDialog("Proportion Estimation", st).

oneSampInferenceDialog.setVisible(true);

new OneSampInferenceDialog("Mean Test", st).

oneSampInferenceDialog.setVisible(true);

new OneSampInferenceDialog("Proportion Test", st).

oneSampInferenceDialog.setVisible(true);

new OneSampInferenceDialog("Median Test", st).

oneSampInferenceDialog.setVisible(true);

Results: