correlation & regression dk 2015

8/19/2019 Correlation & Regression DK 2015

1/12

12/3/20

CELAI

D K, D

ALA K DIJAAB HAI II

1. B

?

2. B ?

3. K ?

ALA K DIJAAB HAI II

4. B

?

5. F

?

6. B

?

CH EALA KAJIA

• A () ?

• A () ()?

• A () () ?

KELAI

• K

• K

• K ()

/ D

• CAEL

2

( ).


2/12

12/3/20

CAE F CELAI

,

.

&

CAE DIAGAM

• D ,

()

(

) .

I M( )

= 0.81

L:

.

L E E

= 0.14

L

BEA CACE MALI AD

HIE

= 0.75

L

CAIACE

• C:

• D :


3/12

12/3/20

CAIACE

• K ,

•

BEA CACE AD HIE

= 0.75

EKALI KELAI EA

• N ,

1

EGIAAID M

M

1 5 2

2 3 1

3 9 3

4 4 2

5 9 5

6 5 2

7 7 4

8 2 1

EELEAIA & FAC AG MEMEGAHI

EKALI KELAI

•

•

H


4/12

12/3/20

MEGHADKA JLA HEEGEE AMLE

EMEHAIA

• H

A

N 6.47 4.03

6.13 3.76

NE 6.19 3.77

E M 4.89 3.34

M 5.63 3.47

E A 4.52 2.92

5.89 3.2

4.79 2.71

5.27 3.53

6.08 4.51

N I 4.02 4.56

EMEHAIA

= 0.224;

=0.509

CELAI & CAAI

• H

.

•

.

• H

• M

.

JIA IGIFIKA KELAI

• , .

• C:

– 25 – 25

– D = 0.278

– = N 2, N =

– J


5/12

12/3/20

5 LAGKAH JIA HIEI

1. H

2. ()3. B

4. D

5. B K

JIA IGIFIKA KELAI

• H0: ρ = 0

• H1: ρ ǂ 0

• = 0.05

• Buat Pengiraan; dapat df

• Dapatkan nilai kritikal (daripada

jadual)

• Buat Keputusan

K

CH AKHI

• () .

• N = 50

• = 0.30

• A ?

CAA ELIA DAAA KELAI

• () . , 50 KM, ( 5 ) (A=4;B=3) .

• ,

. K

= 0.30 ,

, ((48) = 0.30,


6/12

12/3/20

LAIHA

• A

?

• A ?

• .

H

56 87

56 91

65 85

65 91

50 75

25 28

87 122

44 66

35 58

EGEI LIEA MDAH

• A ?

• A ?

• B ?

• ?

• B ?

• B ?

BEAA EGEI DEGA KELAI?

• A , : – A ?

– A ?

• A / , .

IILAH BA

• : () .

• :

• K D K (2): K . I: 2 0.56, 56% .

CH EBICAGA

ID M M

1 5 2

2 3 1

3 9 3

4 4 2

5 9 5

6 5 2

7 7 4

8 2 1


7/12

12/3/20

MAA LAGKAI & MAKAH

= 0.887

GAIA EGEI

• = N

• = K

• = ( = 0)

• =

GAIA BE FI

• A F?

.

• K MEI ,

0, .

•

G

I M( )

= 0.81

= . = . = .


8/12

12/3/20

EKALI EGEI

• (EKALI EGEI):

, .

CH EBICAGA

ID M

M

1 5 2

2 3 1

3 9 3

4 4 2

5 9 5

6 5 2

7 7 4

8 2 1

Y = 33.988 + 2.239X1

E & MM CH LEA

EIG

EGEI HAA BEMAKA JIKA KELAI

AAA DA EMBLEHBAH EEBADALAH IGIFIKA!!!!

ENGJIAN HIOEI??

• K

()

,

.

• K ,

.


9/12

12/3/20

ELAA EGEI

•

. 13 . ; ((11) = 0.86,


10/12

12/3/20

LEBIH DAIADA 1 EAMAL?

• = N

• = K

• = ( = 0)

• =

•

• I K: ( )

– 1= 1, 2

– = . .

k k 221i1X bX bX ba Ŷ ++++= K

N

A K

CH EGEI BEGADA

• C: A

5?

• = M

• 1 = M

• 2 = M

EGEI BEGADA

0

Y

X1X2

Kerana kita adatiga

pembolehubah, plot kita

juga mempunyai tiga

dimensi...

•

1

2

GAF MDEL DA FAK/EMBLEHBAH

2211X bX bŶ ++= aKita cuba lukiskan

satu satah yang

mempunyai “error”yang paling kecil…

EGEI BEGADA

•

.

• (

),

.

– J :

– J :


11/12

12/3/20

C 1

• A

() . D

:

No: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

BilAnak(Y): 2 5 1 9 6 3 0 3 7 7 2 5 1 9 6 3 0 3 7 14 2 5 1 9 6

Pendidikan (X1) 12 16 20 12 9 1 16 14 9 12 12 10 20 11 9 18 16 14 9 8 12 10 20 11 9

Pendapatan (‘000, X2): 3 4 9 5 4 12 10 1 4 3 10 4 9 4 4 12 10 6 4 1 10 3 9 2 4

• O

:

B A

51.9% variasi dalam

bilangan anak boleh

dijelaskan oleh tahun

pendidikan dan

pendapatan.

Y = 10.06 - 0.31X1 – 0.33X2

Σ ( )2∧

• . ( , )

• H:

– H0: β = 0 ( )

– H1: β ≠ 0 ( )

• I .

AA

• ANOA

. I

()

• H:

– H0: β1 = β2 = = β = 0 ( )

– H1: β ≠ 0

• I ANOA

ANOA

.

ELAA EGEI BEGADA

•

. J

() () .

A

.


12/12

12/3/20

ELAA

• A

(F(2,22)=11.88, 2 =0.519). F (=0.31, =2.23,=0.036) (=0.33, =2.19,=0.039) . : () ()

ELAMA MAJ JAA

correlation & regression dk 2015

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