⏳ What is Survival Analysis? ⏳ 🤔How long does it take to get a job after graduation? Or for a patient to recover from a disease? Questions like these are answered with #SurvivalAnalysis, a statistical approach that makes sense of time-to-event data, even when some pieces are missing! The trickiest part? #Censored data—when we don’t have the full story for every subject. Here’s a quick look at the types: 🚦 Types of Censoring: 📍 Left Censoring: What happened before a certain point is unclear. Example: Students who join a class with prior knowledge. 📍 Right Censoring: We lose track of what happens after a certain point. Example: A participant drops out of a study or can’t be followed up. 📍 Interval Censoring: An event occurs between two moments, but the exact time is unknown. Example: A disease is detected between routine health check-ups. That’s just the beginning! In my next post, I’ll explore how we uncover insights from these challenges and make predictions from incomplete data.🚀 💬 Have you dealt with censored data before? Share your #experience—I’d love to hear about it! #SurvivalAnalysis #CensoredData #DataScience #Biostatistics #Analytics #PHARMASTATS #rstat
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Statistical significance is a term that often confuses researchers. Simply put, it helps you determine whether your findings are likely due to random chance or if they reflect actual patterns in your data. In hypothesis testing, if your 𝐩-𝐯𝐚𝐥𝐮𝐞 (probability value) is below a certain threshold, typically 0.05, it means there's less than a 5% chance that your results happened randomly. But here’s the catch: statistical significance doesn’t mean practical significance. Your findings may be statistically significant but not necessarily meaningful in real-world applications. 👉 So, while statistical significance helps you validate your data, always interpret it with context! Want to master concepts like these and more? Enroll in my 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐌𝐞𝐭𝐡𝐨𝐝𝐨𝐥𝐨𝐠𝐲 & 𝐁𝐢𝐨𝐬𝐭𝐚𝐭𝐢𝐬𝐭𝐢𝐜𝐬 𝟏𝟎𝟏 𝐜𝐨𝐮𝐫𝐬𝐞! 🌟 DM me or WhatsApp 𝟖𝟑𝟏𝟖𝟔𝟕𝟗𝟕𝟐𝟓to join our 𝐜𝐨𝐡𝐨𝐫𝐭 𝐬𝐭𝐚𝐫𝐭𝐢𝐧𝐠 𝐨𝐧 𝐍𝐨𝐯 𝟒𝐭𝐡! #StatisticalSignificance #HypothesisTesting #ResearchSkills #Biostatistics #HealthcareResearch #MedicalResearch #DataAnalysis #ResearchMethodology101 #Cohort4 #EnrollNow
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Dear Network, Throughout this year, I have worked on numerous projects that have significantly enhanced my skills and expertise. I am excited to share my projects with you. Third Project: This project entails data exploration and preprocessing, exploratory data analysis, data preparation for modeling, logistic regression, and decision tree modeling, with evaluation using various metrics. It focuses on analyzing and predicting heart disease mortality. #datamining #data_science #logistic_regression #decision_trees #random_forest #SVM #KNNneighbors #PCA
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I’m excited to share that I successfully delivered a presentation on Real World Data Analysis during National Statistical Day at Lambda Therapeutic Research. This event was a unique chance to explore and discuss the practical applications of data analysis in our daily work and beyond. A big thank you to everyone who attended and contributed to the insightful discussions. Your engagement and feedback made the presentation a rewarding experience! #DataAnalysis #Statistics #Innovation #ProfessionalDevelopment #NationalStatisticalDay
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Week 8 Reflection Click-On Kaduna In Week 8 of the Click-On Kaduna Data Science Fellowship, I explored the immense potential of Microsoft Excel as a powerful tool for data analysis and visualization. The sessions provided valuable insights into leveraging Excel for managing, analyzing, and visualizing data effectively. Key Highlights: 1. Data Pipeline in Excel: Learned how to streamline workflows for seamless data preparation and cleaning, which is critical for handling large datasets. 2. Core Functions: Mastered essential functions like COUNT, IF, SUMIFS, and AVERAGEIFS to enhance data accuracy and manipulation. 3. Automation: Advanced tools like VLOOKUP, LOOKUP, INDEX, and MATCH simplified data retrieval, offering flexibility and saving time. 4. Dashboards and Visualizations: Gained the skills to design impactful dashboards that communicate insights clearly and effectively. Week 8 was transformative, equipping me with practical skills to handle real-world data challenges. These tools also played a crucial role in analyzing the 2018/2019 Kaduna State General Household Survey, where I generated insights into health trends like disease prevalence, malaria prevention, and healthcare accessibility. I’m excited to apply these skills in upcoming projects to tell compelling stories with data! Click-On Kaduna Natview Foundation for Technology Innovation #ContinousLearning #ClickOnKadunaDSFP #DataScienceFellow #MicrosoftExcel #DataAnalysis #Dashboards #PublicHealth #DSFP4.0
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Hypothesis testing: One-sample test for means. A one-sample test for means is a statistical procedure used to determine if the mean of a single sample is significantly different from a known or hypothesized population mean. There are two common types of one-sample tests for means: the one-sample t-test and the one-sample z-test. 1. One-Sample t-Test This test is used when the population standard deviation is unknown and the sample size is relatively small (typically n < 30). 2. One-Sample z-Test This test is used when the population standard deviation is known or the sample size is large (typically n ≥ 30). #statistics #datascience #dataanalyst #datascientist
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"Research Methods " #ResearchMethods #ResearchAndDevelopment #AcademicResearch #ScientificResearch. #ResearchSkills #QualitativeResearch #QuantitativeResearch #MixedMethodsResearch #SurveyResearch #ExperimentalDesign #MarketResearch #SocialScienceResearch #HealthcareResearch #EducationResearch #BusinessResearch #DataAnalysis #Statistics #DataVisualization #SurveyTools #ResearchSoftware #ResearchCommunity #AcademicCollaboration #ResearchPartnership #InterdisciplinaryResearch #CollaborativeResearch
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"Unraveling the Power of Stratified Random Sampling" Discover how stratified random sampling can enhance your research accuracy and efficiency in our latest resource. This guide delves into the methodology behind stratified random sampling, its advantages over simple random sampling, and practical tips for implementation. Learn to segment your population into homogenous subgroups to ensure more precise and representative data collection. Perfect for researchers and statisticians looking to refine their sampling techniques. Learn More: https://buff.ly/3wBBjmO #ResearchMethods #DataCollection #Statistics
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Sampling from a population is a key component of almost every statistical survey. That's why it is featured in one of the modules in my upcoming online course, Statistical Methods in R, which begins tomorrow, September 9. To give you a sneak peek of the course and the topic, I’ve made this module available for free. It includes two videos, a reproducible R script, 11 exercises, and many additional resources. Check out the free module on sampling here: https://lnkd.in/eg9iKcfu Sampling is the process of selecting a subset from a population to analyze, with the goal of drawing conclusions about the whole population. Various sampling techniques exist to ensure that the sample is both representative and suited to the research objectives: 🔸 Simple Random Sampling: Each member of the population has an equal chance of being selected. This technique works best when the population is homogeneous and can be easily accessed. 🔸 Systematic Sampling: Every nth member of the population is selected after a random starting point is chosen. This method is simple and effective, particularly when dealing with a well-organized population list. 🔸 Stratified Sampling: The population is divided into distinct subgroups (strata) based on specific characteristics, and samples are drawn from each stratum proportionally. This technique ensures all significant subgroups are fairly represented. 🔸 Cluster Sampling: The population is divided into clusters, typically based on geography or another shared attribute, and entire clusters are sampled. This method is highly efficient for large, dispersed populations, making it more practical and cost-effective. The choice of sampling technique depends on the survey’s objectives, the nature of the population, and the available resources. The visualization in this post, based on images from Wikipedia (https://lnkd.in/ebbDMvda); https://lnkd.in/e3RqhVpb; https://lnkd.in/eFdcyMTi), illustrates several commonly used sampling techniques. Want to learn more about topics like this? Don’t miss out! The Statistics Globe online course, Statistical Methods in R, starts tomorrow, September 9. More info: https://lnkd.in/d-UAgcYf #statistics #rstats #sampling #datascience
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Welcome everyone to my 10# project titled "Cholera Breakout Death Analysis." Cholera was a severe epidemic disease during the 19th century that impacted populations worldwide. A significant outbreak occurred in Stockholm, Sweden in 1853, resulting in numerous fatalities due to inadequate sanitation facilities. This report will analyze the data on Cholera deaths in Stockholm in 1853, focusing on total deaths by age group, sex, day, month, and occupation. Data Source: Quantum Analytics NG Visualization Tool: Microsoft Power BI KPIs Total Death Total Male Total Female Total age group Average Age I would like to express my heartfelt gratitude to Jonathan Osagie and the entire Quantum Analytics NG team for their unwavering perseverance, dedication, and support during the duration of my course. #DataAnalysis #dataanalyst #Dataanalytics #datascience #data #Microsoft #PowerBI
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📊 Evaluating a Weight-Loss Program: A Data-Driven Approach I recently conducted a study to evaluate the effectiveness of a weight-loss program using data from 10 participants. The goal was to determine if the program effectively helps individuals lose weight. Study Overview: - Participants: 10 individuals - Objective: Assess the program's effectiveness - Metrics: Weight before and after the program Hypotheses: - Null Hypothesis: The weight-loss program is not working. (Difference ≥ 0) - Alternative Hypothesis: The weight-loss program is working. (Difference < 0) Key Findings: - Mean Difference: -2.51 lbs - Standard Deviation: 3.95 - Standard Error: 1.25 - T-Score: -2.01 - p-value: 0.038 Conclusion: At 0.01 Significance Level: Accept the null hypothesis. The weight-loss program is not working. At 0.05 Significance Level: Reject the null hypothesis. The weight-loss program is working. At 0.10 Significance Level: Reject the null hypothesis. The weight-loss program is working. The results indicate a mean weight loss among participants. The program appears effective at significance levels of 0.05 and 0.10, but not at the stricter 0.01 level. 🔬 #WeightLoss #DataScience #StatisticalAnalysis #HealthResearch #BusinessIntelligence
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