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© 2022 – Ade Setiawan: https://www.smartstat.info | RANCANGAN Petak-Petak Terbagi (Split-Split-Plot) 207 Contoh Penerapan Percobaan dibidang pertanian ingin mempelajari pengaruh dari tiga faktor yaitu, pemupukan Nitrogen (A), Manajemen terhadap tanaman (B) dan Jenis Varietas (C) terhadap hasil produksi padi (ton/ha). Faktor Nitrogen ditempatkan sebagai petak utama, Manajemen sebagai anak petak dan varietas sebagai anak-anak petak. Tabel 45. Data Hasil Produksi Padi (ton/ha) Nitrogen (A) Manajemen (B) Varietas (C) Kelompok (K) Total 1 2 3 Perlakuan a1 b1 c1 3.320 3.864 4.507 11.691 c2 6.101 5.122 4.815 16.038 c3 5.355 5.536 5.244 16.135 Total a1b1kl 14.776 14.522 14.566 43.864 b2 c1 3.766 4.311 4.875 12.952 c2 5.096 4.873 4.166 14.135 c3 7.442 6.462 5.584 19.488 Total a1b2kl 16.304 15.646 14.625 46.575 b3 c1 4.660 5.915 5.400 15.975 c2 6.573 5.495 4.225 16.293 c3 7.018 8.020 7.642 22.680 Total a1b3kl 18.251 19.430 17.267 54.948 Total a1kl 49.331 49.598 46.458 145.387 a2 1 c1 3.188 4.752 4.756 12.696 c2 5.595 6.780 5.390 17.765 c3 6.706 6.546 7.092 20.344 Total a2b1kl 15.489 18.078 17.238 50.805 2 c1 3.625 4.809 5.295 13.729 c2 6.357 5.925 5.163 17.445 c3 8.592 7.646 7.212 23.450 Total a2b2kl 18.574 18.380 17.670 54.624 3 c1 5.232 5.170 6.046 16.448 c2 7.016 7.442 4.478 18.936 c3 8.480 9.942 8.714 27.136 Total a2b3kl 20.728 22.554 19.238 62.520 Total a2kl 54.791 59.012 54.146 167.949 a3 1 c1 5.468 5.788 4.422 15.678 c2 5.442 5.988 6.509 17.939 c3 8.452 6.698 8.650 23.800 Total a3b1kl 19.362 18.474 19.581 57.417 2 c1 5.759 6.130 5.308 17.197 c2 6.398 6.533 6.569 19.500 c3 8.662 8.526 8.514 25.702 Total a3b2kl 20.819 21.189 20.391 62.399 3 c1 6.215 7.106 6.318 19.639 c2 6.953 6.914 7.991 21.858 c3 9.112 9.140 9.320 27.572 Total a3b3kl 22.280 23.160 23.629 69.069 Total n3kl 62.461 62.823 63.601 188.885 Total Kelompok 166.583 171.433 164.205 502.221
© 2022 – Ade Setiawan: https://www.smartstat.info | RANCANGAN Petak-Petak Terbagi (Split-Split-Plot) 208 Perhitungan: Langkah 1: Hitung Faktor Koreksi FK = Y. . . . 2 rabc = (502.221) 2 3 × 3 × 3 × 3 = 3113.90 Langkah 2: Hitung Jumlah Kuadrat Total JKT = ∑ Yijkl 2 i,j,k,l − FK = (3.320) 2 + (3.864) 2+. . . +(9.320) 2 − 3113.90 = 189.71 Analisis terhadap Petak Utama: Data Total Petak Utama (Kelompok x Nitrogen) Nitrogen (A) Kelompok (K) Total A 1 2 3 1 49.331 49.598 46.458 145.387 2 54.791 59.012 54.146 167.949 3 62.461 62.823 63.601 188.885 Total K 166.583 171.433 164.205 502.221 Langkah 3: Hitung Jumlah Kuadrat Petak Utama JK(PU) = ∑ Yi..l 2 bc i,l − FK = ∑ (airl) 2 i,l bc − FK = (49.331) 2 + (49.598) 2+. . . +(63.601) 2 3 × 3 − 3113.900 = 37.36 Langkah 4: Hitung Jumlah Kuadrat Kelompok JK(K) = ∑ Y...l 2 abc l − FK = ∑ (rl) 2 l abc − FK = (166. 583) 2 + (171. 433) 2 + (164. 205) 2 3 × 3 × 3 − 3113. 90 = 1. 005 Langkah 5: Hitung Jumlah Kuadrat Faktor A JK(A) = ∑ Yi.. 2 rbc i − FK = ∑ (ai) 2 i rbc − FK = (145. 387) 2 + (167. 949) 2 + (188. 885) 2 3 × 3 × 3 − 3113. 90 = 35. 055
© 2022 – Ade Setiawan: https://www.smartstat.info | RANCANGAN Petak-Petak Terbagi (Split-Split-Plot) 209 Langkah 6: Hitung Jumlah Kuadrat Galat Petak Utama (Galat a) JK(Galat a) = ∑ Yi..l 2 bc i,l − FK − JKK − JKA = ∑ (airl) 2 i,l bc − FK − JKK − JKA = JK(PU) − JK(K) − JK(A) = 37. 36 − 1. 005 − 35. 055 = 1. 296 Analisis terhadap Anak Petak: Data Total Anak Petak: Kelompok x Nitrogen x Manajemen (KAB) Nitrogen (A) Manajemen (B) Kelompok (K) Total AB 1 2 3 1 1 14.776 14.522 14.566 43.864 2 16.304 15.646 14.625 46.575 3 18.251 19.430 17.267 54.948 2 1 15.489 18.078 17.238 50.805 2 18.574 18.380 17.670 54.624 3 20.728 22.554 19.238 62.520 3 1 19.362 18.474 19.581 57.417 2 20.819 21.189 20.391 62.399 3 22.280 23.160 23.629 69.069 Total K 166.583 171.433 164.205 502.221 Data Total Faktor Nitrogen x Manajemen (AB) Nitrogen (A) Manajemen (B) Total A 1 2 3 1 43.864 46.575 54.948 145.387 2 50.805 54.624 62.520 167.949 3 57.417 62.399 69.069 188.885 Total B 152.086 163.598 186.537 502.221 Langkah 7: Hitung Jumlah Kuadrat Anak Petak JK(AP) = ∑ Yij.l 2 c i,j,l − FK = ∑ (aibjrl) 2 i,j,l c − FK = (14.776) 2 + (14.522) 2+. . . +(23.629) 2 3 − 3113.900 = 63.07 Langkah 8: Hitung Jumlah Kuadrat Faktor B JK(B) = ∑ Y.j.. 2 rac j − FK = ∑ (bj) 2 j rac − FK = (152. 086) 2 + (163. 598) 2 + (186. 537) 2 3 × 3 × 3 − 3113. 90 = 22. 785
© 2022 – Ade Setiawan: https://www.smartstat.info | RANCANGAN Petak-Petak Terbagi (Split-Split-Plot) 210 Langkah 9: Hitung Jumlah Kuadrat Interaksi AB JK(AB) = ∑ Yij. 2 rc i,j − FK − JKA − JKB = ∑ (aibj) 2 i,j rc − FK − JKA − JKB = (43. 864) 2 + (46. 575) 2+. . . +(69. 069) 2 3 × 3 − 3113. 90 − 35. 055 − 22. 785 = 0. 162 Langkah 10: Hitung Jumlah Kuadrat Galat Anak Petak (Galat b) JK(Galat b) = JK(AP) − JK(K) − JK(A) − JK(Galat a) − JK(B) − JK(AB) = 63. 07 − 1. 005 − 35. 055 − 1. 296 − 22. 785 − 0. 162 = 2. 771 Analisis terhadap Anak-anak Petak: Tabel Nitrogen x Varietas (AC) Nitrogen (A) Varietas (C) Total A 1 2 3 1 40.618 46.466 58.303 145.387 2 42.873 54.146 70.930 167.949 3 52.514 59.297 77.074 188.885 Total C 136.005 159.909 206.307 502.221 Tabel Manajemen x Varietas (BC) Manajemen (B) Varietas (C) Total B 1 2 3 1 40.065 51.742 60.279 152.086 2 43.878 51.080 68.640 163.598 3 52.062 57.087 77.388 186.537 Total C 136.005 159.909 206.307 502.221 Tabel Nitrogen x Manajemen x Varietas (ABC) Nitrogen (A) Manajemen (B) Varietas (C) 1 2 3 1 1 11.691 16.038 16.135 2 12.952 14.135 19.488 3 15.975 16.293 22.680 2 1 12.696 17.765 20.344 2 13.729 17.445 23.450 3 16.448 18.936 27.136 3 1 15.678 17.939 23.800 2 17.197 19.500 25.702 3 19.639 21.858 27.572

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