Z Test | Hypothesis Testing | Two Proportions | BCS301 | Part 6

📘 Z Test Using Standard Error of Proportion | BCS301 | Module 3 | VTU Mathematics-III In this video, we solve two important VTU examination problems from Statistical Inference – I (Module 3) using the Standard Error of Proportion / Z-test for large samples. 📄 Problem : Consumption of Tea (Standard Error of Proportion) Before an increase in excise duty on tea, 400 people out of a sample of 500 were tea drinkers. After the increase in excise duty, 400 people out of a sample of 600 were tea drinkers. Using standard error of proportion, test whether there is a significant decrease in the consumption of tea at: 95% level of significance 99% level of significance 📌 Course Details Course: BCS301 – Mathematics-III Module: 3 Unit: Statistical Inference – I Topic: Z-Test, Standard Error of Proportion, Hypothesis Testing (Large Samples) ▶️ Full Playlist: 👉    • Statistical Inference | Hypothesis Testing...   📌 Videos in This Playlist (11 Videos 1️⃣ Z Test | Large Sample | Part 1 Coin tossed 400 times (216 heads) 5 percent level 👉    • Hypothesis testing | Z test | Large sample...   2️⃣ Z Test | Large Sample | Part 2 Coin tossed 1000 times (540 heads) 1 percent level 👉    • Hypothesis testing | Z test | Large sample...   3️⃣ Z Test | Large Sample | Part 3 Die thrown 324 times (181 odd) 5 percent level 👉    • Hypothesis testing | Z test | Large sample...   4️⃣ Z Test | Large Sample | Part 4 Die thrown 9000 times (5 or 6 appeared 3240 times) 1 percent level 👉    • Hypothesis testing | Z test | Large sample...   5️⃣ Z Test | Large Sample | Part 5 230 female & 270 male births Test of equal proportions 👉    • Hypothesis testing | Z test | Large sample...   6️⃣ Z Test | Two Proportions | Part 1 Defect comparison between two cities 👉    • Z Test | Hypothesis Testing | Two Proporti...   7️⃣ Z Test | Two Proportions | Part 2 Smoking habit comparison 👉    • Z Test | Hypothesis Testing | Two Proporti...   8️⃣ Z Test | Two Proportions | Part 3 Defective units in two samples 👉    • Z Test | Hypothesis Testing | Two Proporti...   9️⃣ Z Test | Two Proportions | Part 4 Machine improvement after overhauling 👉    • Z Test | Hypothesis Testing | Two Proporti...   🔟 Z Test | Two Proportions | Part 5 Reduction in defectives 1 percent level 👉    • Z Test | Hypothesis Testing | Two Proporti...   1️⃣1️⃣ Z Test | Standard Error of Proportion Tea consumption before & after excise duty 95 percent & 99 percent levels 👉    • Z Test | Hypothesis Testing | Two Proporti...   📢 BCS301 Mathematics-III | Complete Playlists (VTU 2023–24) 🆕 New Playlists – All Question Papers Solved (Most Important) ▶️ Core Syllabus Playlists 📌 Module 1 – Probability Distributions 👉    • BCS301 Module 1 – Probability Distribution...   📌 Module 2 – Joint Probability & Markov Chain 👉    • BCS301 Module 2 – Joint Probability Distri...   📌 Module 3 – Statistical Inference-I (Z-test, Hypothesis Testing) 👉    • Statistical Inference | Hypothesis Testing...   📌 Module 4 – Statistical Inference-II (Chi-Square, t-test, F-test) 👉    • Statistical Inference-II | BCS301 Mathemat...   📚 Complete VTU Syllabus Playlists 📘 Module 1 👉    • Probability Distributions | BCS301 – Modul...   📘 Module 2 👉    • Joint Probability & Markov Chain | BCS301 ...   📘 Module 3 👉    • Statistical Inference – I | Mathematics-II...   📘 Module 4 👉    • Mathematics-III |BCS301 Module 4: Statisti...   📘 Module 5 – Design of Experiments & ANOVA 👉    • Design of Experiments & ANOVA | BCS301 – M...   📝 Model Question Paper Solution Playlists 🔹 Module 1 👉 https://www.youtube.com/playlist?list... 👉    • BCS301 Module 1 | Probability Distribution...   👉    • BCS301 Module 1 | Probability Distribution...   🔹 Module 2 👉    • Joint Probability Distributions & Markov C...   👉    • BCS301 Module 2 | Joint & Conditional Dist...   👉    • BCS301 Module 2 | Joint Probability & Mark...   🔹 Module 3 👉    • BCS301 Module 3 | Statistical Inference 1 ...   👉    • BCS301 Module 3 | Statistical Inference 1 ...   👉    • BCS301 Module 3 | Statistical Inference – ...   🔹 Module 4 👉    • BCS301 Module 4 | Central Limit Theorem, C...   👉    • BCS301 Module 4 | Chi-Square, t-Test & Cen...   👉    • BCS301 Module 4 | Statistical Inference – ...   📢 Important Note 👉 Follow this WhatsApp channel so you don’t miss any new BCS301 playlist, question paper solution, or update. 👉 Follow VTU Maths with Muheeb (Mathematics Tutor) on WhatsApp https://whatsapp.com/channel/0029Vb6c... 👉 Get all VTU Maths updates and video links on Telegram https://t.me/vtumathswithmathematicst... #ZTest #HypothesisTesting #DifferenceBetweenProportions #BCS301 #StatisticalInference #VTUMathematics #EngineeringMathematics