Tests
Example
list1 : { 38, 56, 59, 64, 74 }
list2 : { 41, 63, 70, 72, 84 }
•Statistics Wizard Operation
(1)Input the data into [list1] and [list2] in the Stat Editor.
(2)On the menu bar, tap [Calc] and then [Test].
(3)Select [Linear Reg TTest] and then tap [Next >>].
(4)Select the β & ρ condition [≠].
(5)Select XList [list1], YList [list2] and Freq [1].
(6)Tap [Next >>].
(7)To display the graph, tap $.
uProgram, eActivity or Main Application
Command: LinRegTTest
Command Syntax
“β & ρ condition”, XList, YList, Freq (or 1)
* “Freq” can be omitted. Doing so sets “1” for “Freq”.
Input Example
LinRegTTest “≠”,list1,list2,1
kχ2 Test
χ2 Test
Menu: |
Description: This command tests hypotheses concerning the proportion of samples included in each of a number of independent groups. The χ2 Test command is used in the case of dichotomous variables, which are variables that have only two possible values (such as “yes” or “no”).
Expected Frequencies |
| k | ⋅Σxij |
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| Σxij |
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| Fij = | i=1 | j=1 |
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| k |
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| ΣΣ xij |
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| i=1 | j=1 |
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| χ2 = ΣΣ (xij – Fij) | 2 | ||||
| k |
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| i=1 j=1 | Fij |
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Definition of Terms
Observed matrix: name of matrix containing observed values (positive integers in all cells for 2 × 2 and larger matrices; positive real numbers for one row matrices)
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