Publications by Sofia Nicklaus S.
Analysis of Bank Data
1 Purposes & Scope Purposes: General Purposes: Conduct a comprehensive analysis of the bank data and articulate key insights derived from the findings. Special Purposes: Find the solution from insights information. Scope: Dataset: A sample of customer data comprising debit, credit, and deposit transactions. Time Period: - Tool: R Studio 2 ...
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OPT6
Latihan 12: Ekspektasi Maksimum Di kelas ini, kita akan mengimplementasikan algoritma ekspektasi maksimalisasi untuk memperkirakan parameter Gaussian Mixture. Metode ini menyediakan pengklasifikasi tanpa pengawasan yang sangat berguna ketika distribusi Gaussian diasumsikan. Misalkan kita ingin memodelkan parameter populasi yang diasumsikan menjad...
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CS_Lab4
1 Introduction As a data scientist you probably retain or reject hypothesis based on measurements of observed samples. The decision is often based on a statistical mechanism called hypothesis testing. Let’s watching the following video: There are three conditions of having hypothesis testing included: Left Tailed Test: When the \(\bar{x}\) is...
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Confidence Intervals
1 Brief Introduction Please watching this video, to get some ideas about Confidence Intervals (CI) 2 CI in Business This video guide you, how can you apply Confidence Intervals in Business. 3 Your Exercise In this section, your expected to get familiar with confidential intervals exercise: 3.1 Exercise 1 Find a point estimate of average univer...
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Lab3: Linear Programming Modeling
Case Study 1 Suppose a farmer has 75 acres on which to plant two crops: wheat and barley. To produce these crops, it costs the farmer (for seed, fertilizer, etc.) $120 per acre for the wheat and $210 per acre for the barley. The farmer has $15000 available for expenses. But after the harvest, the farmer must store the crops while awaiting avourab...
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Probability Distributions
1 Binomial Distribution 1.1 Question What is a binomial distribution in Statistics? What is binomial distribution used for? Please argue 4 requirements needed to be a binomial distribution? Is a binomial distribution a normal distribution? Suppose there are twenty multiple choice questions in an Statistics class quiz. Each question has five pos...
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Lab4
1 Bisection Method The bisection method is another approach to finding the root of a continuous function \(f(x)\) on an interval \([a,b]\). The method takes advantage of a corollary of the intermediate value theorem called Bolzano’s theorem which states that if the values of \(f(a)\) and \(f(b)\) have opposite signs, the interval must contain a...
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OPT_LAB5
1 General Optimization In mathematics, nonlinear programming (NLP) is the process of solving an optimization problem where some of the constraints or the objective function are nonlinear. An optimization problem is one of calculation of the extrema (maxima, minima or stationary points) of an objective function over a set of unknown real variables...
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CS6
1. Introduction The goodness of fit test is used to test if sample data fits a distribution from a certain population (i.e. a population with a normal distribution or one with a Weibull distribution). In other words, it tells you if your sample data represents the data you would expect to find in the actual population. Goodness of fit tests comm...
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Midterm Exam Computation Statistics
Bab 8 Inferensi dalam Regresi Linear Setelah membaca bagian ini, anda akan dapat: Memahami distribusi dari estimasi regresi. Membuat estimasi interval untuk parameter regresi, rata-rata respons, dan prediksi. Melakukan uji signifikansi regresi. Di bab terakhir, kami mendefinisikan model regresi linear sederhana, \[Y_i = β_0 + β_1 x_i + ϵ_i...
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