3. Uji Homogenitas Ragam..pdf

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Uji Homogenitas Ragam Uraian St Deviasi Ragam n

X1 9,878 97,568 42

X2 10,052 101,044 42

X3 9,225 85,097 42

Y 9,951 99,015 42

Uji Bartlett Sampel X1 X2 X3 Y Jumlah

dk 41 41 41 41 164

Si2 97,568 101,044 85,097 99,015

Log Si2 1,989 2,005 1,930 1,996

dk,Log Si2 81,562 82,185 79,126 81,824 324,697

Menghitung ragam gabungan dari 4 sampel (dk 1S12 )  (dk 2S 22 )  (dk 3S32 )  (dk 4S 24 ) S  (dk 1  dk 2  dk 3  dk 4 ) 2

(41)(97,568)  (41)(101,044)  (41)(85,097)  (41)(99,015) (41  41  41  41) 15691,667 S2   95,681 164

S2 

LogS2 = log (95,681) = 1,981 B = (LogS2) Σdk = (1,981)(164) = 324,885 χ2 hitung = (Ln 10) [B- (Σdk(LogSi2)] = (2,302)(324,885-324,697) = (2,302)(0,159) = 0,396 Dari perhitungan diperoleh nilai χ2 hitung sebesar 0,396 sedangkan χ2 tabel pada dk = k1 = 4-1 = 3 sebesar 7,815, Karena χ2 hitung < χ2 tabel maka ragam dari keempat variabel homogen,

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