ANALISIS REGRESSI

NAMA : NURUL CHAIRUNNISA UTAMI PUTRI

NIM : 1620070008

FAK / JUR : SAINS & TEKNOLOGI / MATEMATIKA

http://roelcup.wordpress.com

UNIVERSITAS ISLAM AS-SYAFI’IYAH

JAKARTA TIMUR

2010

1. Contoh Analisis Regressi Yang di Proses dengan Mc.Excell Secara Manual.

Datanya ialah :

Dengan nilai :

Jawab :

Diketahui nilai :

b1 1.9110 b0 -161.5162

X Y

101 29.9

102 33.7 102 33.0

102 33.2 102 33.9 103 35.1 104 38.9

104 39.5 104 37.0 105 39.5

106 40.4

106 39.9 106 40.8 106 40.6

X = Brinell Hardness Number Y = Tensile Strength (1000 psi)

n 14 JKX 1,453.0000 JKY 515.4000 JKXY 53,572.1000 JKX^2 150,843.0000 JKY^2 19,142.0400

Dan di dapat,

Tabel sidiq ragam :

Sumber Keragaman db JK KT Fhit Ftab

Regresi 1 154.6787 154.6787 139.7858 4.9646 Galat Percobaan 12 13.2785 1.1065 Total 13 167.9571

Sumber Keragaman db JK KT Fhit Ftab Due to b0 1 18,974.0829 18,974.0829 Due to b1|b0 1 154.6787 154.6787 139.7858 4.9646 Galat Percobaan 12 13.2785 1.1065 Total 14 19,142.0400

Sumber Keragaman db JK KT Fhit Ftab Regresi 1 154.6787 154.6787 Lack of Fit 5 8.8943 1.7789 2.8402 4.3468 Galat Percobaan 7 4.3842 0.6263 Total 13 167.9571

R2 0.9209

FK 18,974.0829 JKT 167.9571 JKR 154.6787 JKS 13.2785

JKS Murni 4.3842

Sumber Keragaman db JK KT Fhit Ftab

Due to b0 1 18,974.0829 18,974.0829 Due to b1|b0 1 154.6787 154.6787 Lack of Fit 5 8.8943 1.7789 2.8402 4.3468 Galat Percobaan 7 4.3842 0.6263 Total 14 19,142.0400

Kemudian dengan Data :

Menghasilkan :

X1 X2 Y

101 10201 29.9 102 10404 33.7 102 10404 33.0 102 10404 33.2 102 10404 33.9 103 10609 35.1 104 10816 38.9 104 10816 39.5 104 10816 37.0 105 11025 39.5 106 11236 40.4 106 11236 39.9 106 11236 40.8 106 11236 40.6

(X'X)-1 1,623,236.1240 - 31,285.5588 150.7038

- 31,285.5588 603.0081 - 2.9048 150.7038 - 2.9048 0.0140

X'X 14.0000 1,453.0000 150,843.0000

1,453.0000 150,843.0000 15,664,141.0000 150,843.0000 15,664,141.0000 1,627,083,123.0000

Dan di dapat,

Tabel sidiq ragam :

Sumber Keragaman db JK KT Fhit Ftab

Regresi 2 162.2928 81.1464 Lack of Fit 4 1.2802 0.3201 0.5110 4.7374 Galat Percobaan 7 4.3842 0.6263 Total 13 167.9571

X'Y 515.4000 53,572.1000 5,569,956.1000

JKR JKR kor

19,136.3756 162.2928

B - 3,676.9045

69.6704 - 0.3264

B' - 3,676.9045 69.6704 - 0.3264

R2 0.9663

Sumber Keragaman db JK KT Fhit Ftab

Due to b0 1 18,974.0829 18,974.0829 Due to b1|b0 1 154.6787 154.6787 246.9684 5.5914 Due to b2|b0,b1 1 7.6141 7.6141 12.1571 5.5914 Lack of Fit 4 1.2802 0.3201 0.5110 4.7374 Galat Percobaan 7 4.3842 0.6263 Total 14 19,142.0400

Nurul Chairunnisa Utami Putri :

http://roelcup.wordpress.com

roelcup@gmail.com

cup_13@yahoo.co.id