Testul de egalitate a variantelornumar defecte (y) timp verificare ni var grupa

1 4 5 6 8 8 4 5 3.22 6 11 13 15 17 3.5 5 17.83 9 13 14 15 21 2 5 18.84 6 13 16 23 26 1.5 5 63.75 11 15 17 22 34 1 5 78.76 7 21 23 28 38 0.5 5 127.3

var totala 51.5833313.266451.097222

5 12.090946 11.0705

Testul de egalitate a variantelorvarb totala vi=ni-1

12.8 4.652603 471.2 11.51679 475.2 11.73543 4

254.8 16.61674 4314.8 17.46257 4509.2 19.38619 41238 81.37032

YI XI Testul Golfeld-Quandt4 4 SUMMARY OUTPUT5 46 4 Regression Statistics8 4 Multiple R 0.2934428 4 R Square 0.0861086 3.5 Adjusted R -0.015435

11 3.5 Standard E 4.27741713 3.5 Observatio 1115 3.517 3.5 ANOVA

9 2 df SS MS F Significance F13 2 Regression 1 15.51515 15.51515 0.847994 0.38114114 2 Residual 9 164.6667 18.296315 2 Total 10 180.181821 2

6 1.5 CoefficientsStandard Error t Stat P-value Lower 95%Upper 95%13 1.5 Intercept 16.93333 8.418293 2.011493 0.075147 -2.110168 35.9768316 1.5 X Variable -2.133333 2.31666 -0.920866 0.381141 -7.373982 3.10731623 1.526 1.511 115 1 Fstelat 5.29566817 122 1 3.17889334 1

7 0.521 0.523 0.528 0.538 0.5

Testul Golfeld-QuandtSUMMARY OUTPUT

Regression StatisticsMultiple R 0.047597R Square 0.002265Adjusted R -0.108594Standard E 9.843328Observatio 11

ANOVAdf SS MS F Significance F

Regression 1 1.98 1.98 0.020435 0.889477Residual 9 872.02 96.89111Total 10 874

Lower 95,0%Upper 95,0% CoefficientsStandard Error t Stat P-value Lower 95%Upper 95%-2.110168 35.97683 Intercept 23.08 8.117016 2.843409 0.019296 4.718033 41.44197-7.373982 3.107316 X Variable -1.32 9.23386 -0.142952 0.889477 -22.20844 19.56844

Lower 95,0%Upper 95,0%4.718033 41.44197

-22.20844 19.56844