HP 39G User Manual page 120

Enter data
H I N T
Calculate
statistics
Open
Inference aplet
9-6
2. In the C1 column, enter the random numbers produced
by the calculator.
529
295
952
259
925
592
If the Decimal Mark setting in the Modes input form
( ) is set to Comma, use
MODES
3. If necessary, select 1–variable statistics. Do this by
pressing the fifth menu key until
its menu label.
4. Calculate statistics.
The mean of 0.592 seems
a little large compared to the expected value of 0.5. To
see if the difference is statistically significant, we will use
the statistics computed here to construct a confidence
interval for the true mean of the population of random
numbers and see whether or not this interval contains 0.5.
5. Press to close the computed statistics window.
6. Open the Inference aplet and clear current settings.
Select
Inference
instead of .
is displayed as
Inference aplet