HP Prime Graphing Wireless Calculator - Manual (Page 78)

74 Inference app
Plot the test
results
7. Display a graphical
view of the test
results:
P
The graph of the
distribution is
displayed, with the
test Z-value marked. The corresponding X-value is also
shown.
Tap to see the critical Z-value. With the alpha
level showing, you can press \ or = to decrease or
increase the α-level.
Importing statistics
For many of the calculations, the Inference app can
import summary statistics from data in the Statistics 1Var
and Statistics 2Var apps. For the others, the data can be
manually imported. The following example illustrates the
process.
A series of six experiments gives the following values as
the boiling point of a liquid:
82.5, 83.1, 82.6, 83.7, 82.4, and 83.0
Based on this sample, we want to estimate the true boiling
point at the 90% confidence level.
Open the
Statistics
1Var app
1. Open the Statistics
1Var app:
I Select
Statistics 1Var
Clear
unwanted
data
2. If there is unwanted data in the app, clear it:
SJ All columns