![]() Actually, it is rare to have access to information from all the members connected with the situation. ![]() Obv.iously, this will generally give the most optimum results with maximum correctness but this may not be always possible. This is known as Census or Complete Enumeration and the ‘totality’ is known as Population. Data may be collected from each and every unit/person, connected with the problem-situation (totality related to the situation). So, we require data to make decisions and to answer the business/functional questions. The premise of Data Analytics is based on the philosophy of the “ Data-Driven Decision Making” that univocally states that decision-making based on data has less probability of error than those based on subjective judgement and gut-feeling. ![]() Siddiqui, Professor & Dean (Research) at Jaipuria Institute of Management, Lucknow Introduction to Hypothesis Testing in R
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