Judul: Pre-feasibility Study on Small to Medium Industry Establishment of Powder Carrot Juice Industry at Kabupaten Karo
Abstrak: Wortel merupakan sayuran yang mudah ditemukan dipasaran, harganya murah dan memiliki manfaat bagi kesehatan tubuh manusia. Wortel digunakan sebagai bahan baku pembuatan bubuk wortel yang berguna agar penyajian jus wortel menjadi praktis dan efisien. Penelitian ini bertujuan mengetahui kelayakan pendirian industri kecil menengah jus instan wortel di Kabupaten Karo. Metode yang digunakan adalah metode analisis kelayakan investasi. Formulasi bubuk wortel yang digunakan yaitu berdasarkan hasil uji lab dengan menggunakan maltodekstrin 5% dan tween 80 0,3%. Kapasitas produksi bubuk wortel sebesar 45 kg/hari. Investasi yang dibutuhkan sebesar Rp229 225 810 dan biaya modal kerja Rp39 419 251/bulan dengan asumsi 25 hari kerja. Kriteria studi kelayakan menunjukkan Net Present value (NPV) Rp866 923 441, Internal rate of return (IRR) 65%, Benefit Cost Ratio (B/C Ratio) 4,78, dan Pay back period (PBP) 2,7 tahun. Titik impas tercapai saat penjualan bubuk wortel sebanyak 7 697 kg/tahun. Analisis sensitivitas menunjukkan jika harga bahan baku diturunkan sebesar 10% dan jika harga produk dinaikkan 10% maka industri kecil menengah ini layak untuk didirikan. Berdasarkan seluruh aspek yang dianalisis, industri bubuk wortel layak didirikan di Kabupaten Karo. Kata kunci: Bubuk wortel, wortel, studi kelayakan, kabupaten karo., Carrot is vegetable that is easy to be found in the market, the price is cheap and has lots of benefit for human health. Carrot is used as the raw material for carrot powder production which is useful for practical and efficient serving of carrot juice. This research aims to know the feasibility on small to medium industry establishment of instant carrot juice at Kabupaten Karo. The method used is investment feasibility analysis method. Carrot powder formulation used is based on laboratory test result by using 5% maltodextrin and 0.3% tween 80. The production capacity of carrot powder is 45 kg/day, in Kabupaten Karo. Investment needed is Rp229 225 810 and the capital cost is Rp39 419 251/month with assumption of 25 work days. The feasibility study criteria shows the Net Present Value (NPV) is Rp866 923 441, Internal Rate of Return (IRR) is 65%, Benefit Cost Ratio (B/C Ratio) is 4.78, and Pay Back Period (PBP) is in 2,7 years. The break-even point is achieved when the carrot powder sales reach 7 697 kg/year. Sensitivity analysis shows that if the raw material price is decreased for 10% and if the product price is increased for 10%, then this small and medium industry is feasible to be established. Based on the whole aspects analyzed, the carrot powder industry is feasible to be established in Kabupaten Karo.
Keyword: Carrot powder, Kabupaten Karo, carrot, feasibility study

Judul: Analisis Efisiensi Ekonomi Usahatani Tumpangsari Wortel di Desa Sukatani, Kecamatan Pacet, Kabupaten Cianjur
Abstrak: The agricultural sector is one sector which is still reliable, because it has an important role for the economic development of a nation. Based on the value of 2007-2010 Indonesian horticulture Gross Domestic Product (GDP), vegetables are the second largest contributor to GDP after fruit with average value of Rp 28,885 billion. One type of vegetable that has the greatest growth rate is carrots, with growth rate 5.05%. Carrot production in Indonesia from 2007-2010 tended to increase. Largest carrot production is from Cianjur with the amount of 34 559 tones, equivalent to 30.43% of the total production in West Java and also become the center of production of carrots. The purpose of this study was to identify the factors that affect the level of production and estimate the production of economic efficiency. The model analysis used in this study was Cobb Douglas function model with Ordinary Least Square method (OLS). Economic efficiency analysis performed using the ratio approach Marginal Product Value (NPM) with Sacrifice Marginal Cost (BKM). The analysis showed that the factors which significantly affect the influence the farm production of intercropping of carrots were seeds, organic fertilizer and urea fertilizer. Results of economic efficiency analysis showed that farming had not reached economic efficiency yet. It was shown from the ratio of the Marginal Product Value (NPM) with sacrifices Marginal Cost (BKM) were not equal with one. Based on the income analysis, intercropping farming of carrots was providing economic benefits for farmers. This was indicated by the value of the cash cost of revenues over one growing season was Rp 10 747 174.00/Ha and revenues over one growing season total cost was Rp 3 592 374.00/Ha.
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Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
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