HP 39g+ - Manual (Page 116)

9-2 Inference aplet
Getting started with the Inference aplet
This example describes the Inference aplet’s options and
functionality by stepping you through an example using the
example data for the Z–Test on 1 mean.
Open the
Inference aplet
1. Open the Inference aplet.
>$3/(7@
Select
Inferential
TU6SU— .
The Inference aplet opens
in the Symbolic view.
Inference aplet’s SYMB view keys
The table below summarizes the options available in
Symbolic view
.
Hypothesis Tests Confidence Intervals
Z: 1
µ
, the Z–Test
on 1 mean
Z–Int: 1
µ
, the confidence
interval for 1 mean, based on the
Normal distribution
Z:
µ
1
–
µ
2
, the
Z–Test on the
difference of two
means
Z–Int:
µ
1
–
µ
2
, the confidence
interval for the difference of two
means, based on the Normal
distribution
Z: 1 P, the Z–Test
on 1 proportion Z–Int: 1 P, the confidence
interval for 1 proportion, based
on the Normal distribution
Z: P
1
– P
2
, the
Z–Test on the
difference in two
proportions
Z–Int: P
1
– P
2
, the confidence
interval for the difference of two
proportions, based on the Normal
distribution
T: 1
µ
, the T–Test
on 1 mean
T–Int: 1
µ
, the confidence
interval for 1 mean, based on the
Student’s t–distribution
T:
µ
1
–
µ
2
, the
T–Test on the
difference of two
means
T–Int:
µ
1
–
µ
2
, the confidence
interval for the difference of two
means, based on the Student’s
t–distribution