HP 40gs User Manual page 131

Graphing calculator
Hide thumbs Also See for 40gs:
Table of Contents

Advertisement

hp40g+.book Page 5 Friday, December 9, 2005 1:03 AM
Open the
Statistics aplet
Enter data
H I N T
Calculate
statistics
Inference aplet
A calculator produces the following 6 random numbers:
0.529, 0.295, 0.952, 0.259, 0.925, and 0.592
1. Open the Statistics aplet and reset the current
settings.
Select
Statistics
The Statistics aplet opens in the Numeric view.
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
(
modes) is set to Comma, use
3. If necessary, select 1-variable statistics. Do this by
pressing the fifth menu key until
as 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.
instead of
.
is displayed
11-5

Advertisement

Table of Contents
loading

Table of Contents