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UPDATE FUNGSI STATISTIKA DI DALAM MS EXCEL 2010 - istiarto

UPDATE FUNGSI STATISTIKA DI DALAM MS EXCEL 2010 - istiarto

UPDATE FUNGSI STATISTIKA DI DALAM MS EXCEL 2010 - istiarto

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2. Menghitung nilai probabilitas nilai Q kurang daripada 420.prob(Q < 420) = NORM.<strong>DI</strong>ST(420,660,210,TRUE) = 0.12655, atau0.12655prob(Q < 420) = NORM<strong>DI</strong>ST(420,660,210,TRUE) = 0.12655.Apabila menggunakan distribusi normal standar:420 660prob(Q < 420) = prob(Z < −1.14286) =NORM.S.<strong>DI</strong>ST(−1.14286,TRUE) = 0.12655, atauprob(Q < 420) = prob(Z < −1.14286) =NOR<strong>MS</strong><strong>DI</strong>ST(−1.14286) = 0.12655.3. Mencari nilai Q = q apabila diketahui nilai probabilitasnya, prob(Q < q) = 0.15.q = NORM.INV(0.15,660,210) = 442.349, atauq = NORMINV(0.15,660,210) = 442.349.Apabila menggunakan distribusi normal standar:0.15z = NORM.S.INV(0.15) = −1.03643, atauz = NOR<strong>MS</strong>INV(0.15) = −1.03643.q 660q = −1.03643×210 + 660 = 442.349.<strong>FUNGSI</strong> YANG BERKAITAN DENGAN <strong>DI</strong>STRIBUSI TDeskripsi <strong>MS</strong> Excel <strong>2010</strong> Versi lamaMenghitung pdf distribusi t =T.<strong>DI</strong>ST(x,dof, FALSE) ---Menghitung cdf distribusi t, 1-sisi kiri =T.<strong>DI</strong>ST(x,dof,TRUE) ---Menghitung cdf distribusi t, 1-sisi kanan =T.<strong>DI</strong>ST.RT(x,dof) =T<strong>DI</strong>ST(x,dof,1)Menghitung cdf distribusi t, 2-sisi =T.<strong>DI</strong>ST.2T(x,dof) =T<strong>DI</strong>ST(x,dof,2)Mencari nilai variabel T apabila diketahui =T.INV(prob,dof) ---nilai probabilitasnya, 1-sisi kiriMencari nilai variabel T apabila diketahuinilai probabilitasnya, 2-sisi=T.INV.2T(prob,dof) =TINV(prob,dof)Contoh.Suatu sampel random berdistribusi t (Student’s t), degrees of freedom (jumlah sampel dikurangi satu)dof = 50.

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