Learn Statistics

  Statistical Quality Control** Meaning: S.Q.C. means planned collection & effective use of data for studying causes of variations in quality either as between processes, procedures, materials, machines etc. or over periods of time. By statistical quality control, we mean the various statistical methods used for the maintenance of the quality in manufactured product. Purpose of SQC: 1) To provide a basis for a better understanding of the variations that exists in quality characteristics. 2) To help directly or indirectly to improve quality. 3) To help in separating the assignable causes from the chance causes. 4) Better uniformity of quality. 5) Better utilization of raw materials. 6) More efficient use of equipment. 7) Less scrap and rework, hence lowering costs. 8) Better inspection. 9) Improved producer-consumer relations. Quality of Product: Quality product means good or excellent product. In industry, a quality product is one that fulfils custom...

  ⭐ Meaning of Quality 1️⃣ Conformance to specifications 2️⃣ Fitness for use 3️⃣ Customer satisfaction 4️⃣ Delighting the customer 5️⃣ Enchanting the customer (modern view) 🌟 Dimensions of Quality Attribute Meaning Performance How well it works Features Additional characteristics Reliability Consistency Conformance Meeting standards Durability Life of the product Serviceability Ease of repair Aesthetics Look & feel Reputation Brand trust 🔧 Quality Control A procedure to measure quality, compare with standards, and correct deviations. 🔹 Quality must be planned → achieved → controlled → improved continuously 📊 Statistical Quality Control (SQC) Applying statistical methods to control and improve product quality. 🎯 Purpose of SQC ✔ Reduce variation ✔ Improve quality ✔ Lower scrap & rework ✔ Better productivity & inspection 🖼 Seven Quality Control Tools (7-QC) Below are simplified visual representations to help you post: Tool Simple visual image Fl...