HP 49g+ - Manual (Page 168)

Page 16-11
Select
µ ≠ 150 . Then, press @@@OK@@@. The result is:
Then, we reject H
0
: µ = 150 , against H
1
: µ ≠ 150 . The test z value is z
0
=
5.656854. The P-value is 1.54 × 10 -8 . The critical values of ± z
α
/2
=
± 1.959964, corresponding to critical  x range of {147.2 152.8}.
This information can be observed graphically by pressing the soft-menu key
@GRAPH:
Reference
Additional materials on statistical analysis, including definitions of concepts,
and advanced statistical applications, are available in Chapter 18 in the
User’s Guide.