TI-89 / TI-92 Plus / Voyage™ 200 PLT Statistics with List Editor App ˆ Tests Menu 166
LinRegTTest (
continued)
Outputs
Outputs Stored to Description
t t t-Statistic for slope significance.
P Value pval Least probability at which the null hypothesis can be rejected.
df df Degrees of freedom.
a, b a, b Regression line fit offset and slope parameter estimates.
s s Fit error standard deviation for y = a + bx.
SE Slope se Standard error of slope.
r
2
rsq Coefficient of determination.
r r Linear regression correlation coefficient.
resid* resid Residuals of linear fit.
* The output variables are pasted to the end of the list editor when Results!Editor option is YES,
(located in ƒ (Tools) 9:Format).
Example
1. In the list editor, enter:
list3={38,56,59,64,74}
list4={41,63,70,72,84}
2. To select A:LinRegTTest, press:
¦
- ˆ (Tests) j A for the TI-89
¦ ˆ (Tests) A for the TI-92 Plus / Voyage™ 200 PLT
3. The Linear Regression T Test input dialog box is displayed.
4. Enter the arguments into the fields as shown on the next page.
5. Select the options as shown on the next page for the
Alternate Hyp, Store RegEqn to,
and
Results fields.
6. Press b b to calculate the results.
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