Proiect Econometrie

Celu Mihaela Seria A, Grupa 637, CIG

Relatia dintre productia agricola vegetala, numarul de tractoare agricole si suprafata cultivatax1=productia agricola vegetalax2=nr tractoare agricole fizicey=suprafata cultivataJudet

7175109802164085bihor

117792260237809Bistria-Nsud

238858514764091Cluj

89423495527531Maramures

4183506458109960Satu Mare

110535319972569Salaj

251813356660535Alba

127233465434029Brasov

154950383742943Covasna

78566298528305Harghita

4477306156107519Mures

147662285536742Sibiu

426404309491541Bacau

5521742735150661Botosani

5098823272141569Iasi

417002261491437Neamt

254512513278837Suceava

4205113472120786Vaslui

9033953550189369Braila

7454923233180426Buzau

12958904316298349Constanta

7101533595202218Galati

5144342690145757Tulcea

401670331698739Vrancea

4683794101116997Arges

11956674103266574Calarasi

4091415768106882Dambovita

6862374281158212Giurgiu

9627833508207830Ialomita

4022402622100224Prahova

10645157772271476Teleorman

115785124329769Ilfov

395113Bucuresti

9818857409297205Dolj

306263314079196Gorj

3679693505112195Mehedinti

8321716527238785Olt

348487304464268Vilcea

9296077125225522Arad

182569617247942Caras-Severin

119986500530791Hunedoara

141649610453329315Timis

SUMMARY OUTPUT

Regression Statistics

Multiple R0.979845766

R Square0.960097725

Adjusted R Square0.958051454

Standard Error17577.23276

Observations42

ANOVA

dfSSMSFSignificance F

Regression22.89923E+111.44962E+11469.19393555.24149E-28

Residual3912049405354308959111.7

Total413.01973E+11

Ecuatia dreptei de regresie este: y = 0.2267x1+1.9160x2+4354.359, unde a=4354.359 si b1=0.2267, b2=1.9160. B>0, deci exista o legatura directa . - nu este semnicativ statistic, P value>0.05, si nici x2, dar x1( productia agricola vegetala) este semnificativDe asemenea, intervalele de incredere ptr si x2 include valori nule, deci nu sunt semnificativi statistic, sau nu sunt semnificativi diferiti de zero. Dar intervalul de incredere ptr X2 este semnificativ statistic.Significance F