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Plot test results, Open the statistics aplet – HP 39g Graphing Calculator User Manual

Page 121

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background image

Plot test

results

8

. Display a graphic view of the test results.

fPLOT

iTcst Z=-.5HeZ£l5H
|x=.4ei3eg

.4320433 -eCfiiT. X

1 -5 H

Horizontal axes are

presented for both the
distribution variable and
the test statistic. A generic
bell curve represents the probability distribution
function. Vertical lines mark the critical value(s) of the
test, as well as the value of the test statistic. The rejection
region is marked and the test numeric results are
displayed between the horizontal axes.

Importing Sample Statistics from the Statistics

aplet

Open the
Statistics aplet

The Inference aplet supports the calculation of confidence

intervals and the testing of hypotheses based on data in the
Statistics aplet. Computed statistics for a sample of data in a
column in any Statistics-based aplet can be imported for use

in the Inference aplet. The following example illustrates the

process.

A calculator produces the following

6

random numbers:

0. 529, 0.295, 0.952, 0.259, 0.925, and 0.592

1. Open Statistics aplet. Note: Reset current settings.

fAPLETl

Select

Statistics

The Statistics aplet opens
in the Numeric view.

n

Cl

C2

C3

C4

»»»««««

Inference aplet

9-5