Using Lists & Spreadsheet
583
2-Prop z Interval (zInterval_2Prop)
computes a confidence
interval for the difference between the proportion of successes in two
populations (p
1
-
p
2
). It takes as input the count of successes in each
sample (
x
1
and
x
2
) and the count of observations in each sample
(
n
1
and
n
2
). The computed confidence interval depends on the user-
specified confidence level.
This test is useful in determining if two rates of success differ because of
something other than sampling error and standard deviation. For
example, a bettor could use this test to determine if there is an
advantage in the long run by playing one game or machine versus
playing another game or machine.
Linear Reg t Intervals (LinRegtIntervals)
computes a linear
regression t confidence interval for the slope coefficient b. If the
confidence interval contains 0, this is insufficient evidence to indicate
that the data exhibits a linear relationship.
Multiple Reg Intervals (MultRegIntervals)
computes multiple
regression prediction confidence interval for the calculated y and a
confidence for y.
Stat Tests
Supported Statistical tests
Hypothesis tests are available from the Lists & Spreadsheets application.
For complete information regarding these functions, refer to the
TI-Nspire™ Reference Guide
details for the function name provided in
parentheses.
Some of the wizards for Stat Tests display a
Draw
check box. By default,
the box is not checked. Checking the box creates a Data & Statistics work
area on the page and plots the results in that work area.
z test (zTest)
performs a hypothesis test for a single unknown
population mean,
m
, when the population standard deviation,
s
, is
known. It tests the null hypothesis H
0
:
m
=
m
0
against one of the
alternatives below.
•
H
a
:
mƒm
0
•
H
a
:
m
<
m
0
•
H
a
:
m
>
m
0
This test is used for large populations that are normally distributed. The
standard deviation must be known.
Summary of Contents for TI-Nspire
Page 38: ...26 Setting up the TI Nspire Navigator Teacher Software ...
Page 46: ...34 Getting started with the TI Nspire Navigator Teacher Software ...
Page 84: ...72 Using the Content Workspace ...
Page 180: ...168 Capturing Screens ...
Page 256: ...244 Embedding documents in web pages ...
Page 336: ...324 Polling students ...
Page 374: ...362 Using the Review Workspace ...
Page 436: ...424 Calculator ...
Page 450: ...438 Using Variables ...
Page 602: ...590 Using Lists Spreadsheet ...
Page 676: ...664 Using Notes You can also change the sample size and restart the sampling ...
Page 684: ...672 Libraries ...
Page 714: ...702 Programming ...
Page 828: ...816 Data Collection and Analysis ...
Page 846: ...834 Regulatory Information ...
Page 848: ...836 ...