Kak Risma.docx

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  • Words: 101
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a.

Regresi

(Ī£š‘¦)(Ī£š‘„ 2 ) āˆ’ (Ī£š‘„)(Ī£š‘„š‘¦) š‘Ž= š‘›(Ī£š‘„ 2 ) āˆ’ (Ī£š‘„)2 š‘Ž=

(4278)(330721) āˆ’ (4065)(348063) = āˆ’4,369 50(330721) āˆ’ (4065)2

š‘=

š‘›(Ī£š‘„š‘¦)āˆ’(Ī£š‘„)(Ī£š‘¦) š‘›(Ī£š‘„ 2 )āˆ’(Ī£š‘„)2

=

50(348063)āˆ’(4065)(4278) 50(330721)āˆ’(4065)2

=1,106

š‘¦ = š‘Ž + š‘š‘„ š‘¦ = āˆ’4,369 + 1,106

b. š‘Ÿ= š‘Ÿ=

Koefisien Determinasi š‘›. Ī£xy āˆ’ Ī£x . Ī£y āˆš(nĪ£š‘„ 2 āˆ’ (Ī£š‘„)2 ). (š‘›Ī£š‘¦ 2 āˆ’ (Ī£š‘¦)2 ) 50. (348063) āˆ’ (4065)(4278) āˆš(50. (330721) āˆ’ (4065)2 ). (50(367014) āˆ’ (4278)2 )

š‘Ÿ 2 = 0,293

c. š‘”= š’•=

Uji t š‘Ÿāˆšš‘› āˆ’ 2 āˆš1 āˆ’ š‘Ÿ 2 0,293āˆš50 āˆ’ 0,2932 āˆš1 āˆ’ 0,2932

= 2,165

= 0,541

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