Inferential Statistics and Distributions 13–9
8250FC~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 1:39 PM Printed: 10/27/05 2:57
PM Page 9 of 36
To display the STAT TESTS menu, press … |. When you
select an inferential statistics instruction, the appropriate
inferential stat editor is displayed.
Most
STAT TESTS instructions store some output variables to
memory. Most of these output variables are in the
TEST
secondary menu (VARS menu; 5:Statistics). For a list of these
variables, see page 13.28.
EDIT CALC TESTS
1: Z-Test... Test for 1 m, known s
2: T-Test... Test for 1 m, unknown s
3: 2-SampZTest... Test comparing 2 m’s, known s’s
4: 2-SampTTest... Test comparing 2 m’s, unknown s’s
5: 1-PropZTest... Test for 1 proportion
6: 2-PropZTest... Test comparing 2 proportions
7: ZInterval... Confidence interval for 1 m, known s
8: TInterval... Confidence interval for 1 m, unknown s
9: 2-SampZInt... Conf. int. for diff. of 2 m’s, known s’s
0: 2-SampTInt... Conf. int. for diff. of 2 m’s, unknown s’s
A: 1-PropZInt... Confidence int. for 1 proportion
B: 2-PropZInt... Confidence int. for diff. of 2 props
C: c2-Test... Chi-square test for 2-way tables
D: 2-SampÛ
ÛÛ
ÛTest... Test comparing 2 s’s
E: LinRegTTest... t test for regression slope and r
F: ANOVA( One-way analysis of variance
Note: When a new test or interval is computed, all previous output
variables are invalidated.
In this chapter, the description of each STAT TESTS instruction
shows the unique inferential stat editor for that instruction with
example arguments.
• Descriptions of instructions that offer the
Data/Stats input
choice show both types of input screens.
• Descriptions of instructions that do not offer the
Data/Stats
input choice show only one input screen.
The description then shows the unique output screen for that
instruction with the example results.
• Descriptions of instructions that offer the
Calculate/Draw
output choice show both types of screens: calculated and
graphic results.
• Descriptions of instructions that offer only the
Calculate
output choice show the calculated results on the home
screen.
STAT TESTS Menu
STAT TESTS
Menu
Inferential Stat
Editors for the
STAT TESTS
Instructions
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