TI-89 / TI-92 Plus / Voyage™ 200 PLT Statistics with List Editor App ˆ Tests Menu 169
MultRegTests (
continued)
Outputs Stored to Description
ERROR
df dferr Degrees of freedom of the errors.
SS sserr Sum of squares of the errors.
MS mserr Mean squares for the errors.
B List* blist List of coefficients of the regression equation Y_hat=B0+B1*x1+º
SE List* selist List of standard errors of each coefficient in Y_hat(B List).
t List* tlist List of t statistics for each coefficient in Y_hat(B List).
P List* plist List of probability values for each t statistic.
resid* resid Difference between the observed value of the dependent variable and the
value predicted by using the estimated regression equation.
leverage* leverage Measure of how far the values of the independent variable are from their
mean values.
cookd* cookd Cook’s distance; measure of the influence of an observation based on the
residual and leverage.
sresid* sresid Standardized residuals; value obtained by dividing a residual by its
standard deviation.
yhatlist* yhatlist Values predicted by using the estimated regression equation.
* 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:
list1={12,16,25,22,8,10}
list2={11,9,12,9,8,7}
list3={1,2,3,4,5,6}
2. To select B:MultRegTests, press:
¦
- ˆ (Tests) j B for the TI-89
¦ ˆ (Tests) B for the TI-92 Plus / Voyage™ 200 PLT
The Multiple Regression Tests dialog box is displayed.
3. If the Num of Ind Vars you want is already displayed, press b. If not, press B,
select the correct number of independent variables, and then press b.
4. Enter the arguments into the fields as shown on the next page.
5. Press b to calculate the data.
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