Demonetization of higher value notes has caused havoc in India. Modi’s government promised that the situation will ease off in 50 days time. People are looking forward eagerly to get back to their normal life. In between, Modi wanted to know what people feel about the action taken on black money. To get feedback about the new move, he used Narendra Modi app to gather information . The app needs personal data including your voter ID (complete information about the app is discussed here). The app gathered feedback on the new move. Around 5 lakh people have responded to the survey within 24 hours. The results were published by Shri.Narendra Modi via different social media network. Details about the survey are given here.
But the results shared cannot be generalized to the population. Why it cannot be generalized?. Because it doesn’t follow any statistical principles. Let’s get ahead with one question and some discussion on the survey results. Then you will find, why the survey results are not right.
- Does the survey include everyone who represents India? Like rural, urban, literate, illiterate, different geographic location, income based classification, and other parameters. The sample has to be drawn in such a manner that the sample represents the entire population not only a particular set of people.
- 5 lakhs out of 1.25 billion is just 0.04 percent of the entire population. 0.04 percent of the population, who don’t really represent all the sectors of India can’t give a bigger picture.
- Total smartphone users in India is 292 million people. Only 1.7 percent, out of it have responded to the survey. Only people, who are affordable to avail internet services has responded to the survey.
People who are standing in the queue will never find time to respond to the survey. Hence the results can’t be generalized to the entire population. Results published is a summation of opinions of hardcore loyal fans of Modi government.
Leigh Caldwell is an expert in pricing and behavioral economics. He wrote an engaging book titled “The Psychology of Price” . Book only talks about how to set price for a product and how to manage it. The book has 19 chapters in it and right from the first chapter, the author explains various aspects of pricing using a story of “Chocolate tea-cup” product made by Maggie. Even though the story is fictional the lessons are real.
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R programming is an open source software programming available for data analyst and researchers. 23 years back it was developed by John Chambers and it was called as S Programming. Later this was developed by Ross Ihaka and Robert Gentleman and was named as R Programming. By the year 2000, a stable version of R got released. It is now developed by R development core team.
This language makes the job of data scientist easier compared to any other software available in the market. It is growing at a faster pace compared to other languages like Python, SCALA,SAS, SPSS and so on.
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By 2010, I sent an email to Prof. Parasuraman and Prof. Valarie A Zeithamal to discuss about my MBA project work. I used SERVQUAL model to assess the after sales service quality of Shankar Energy Private Limited, Chennai. I knew that the model can be used for analyzing service quality of any company, I doubted whether the same questionnaire can be used for analyzing after sales service quality.
Since it is a research project you must validate your questionnaire. It is not fair to adopt any questionnaire simply without any literature back up. I mailed Prof. Parasuraman and Prof. Zeithamal. I was surprised, I got a reply back from them just in a day. I have sent mails to some Indian professors too, they never replied me back. Does that reply worth appreciating?. Yes, why not?. They are prompt and they acknowledge you, they value your question. This is not the end, there are many common things that really inspire me to stay in the same profession. View full article »
For the last two years, I have spent part of my time in reading about how humans make decisions. I have bought books like Predictably Irrational by Dan Ariely, Thinking Fast and Slow by Daniel Kahneman, The Art of Thinking Clearly by Rolf Dobelli, Nudge by Richard Thaler and Cass Sunstien, Misbehaving by Richard Thaler and Decisive by Chip and Dan Heath. I’m yet to read Misbehaving and Decisive. I just thought to share what I have learned from the books.
Humans are thinking that they are taking rational decision in their life. Rationality is actually questioned by the books that I have mentioned above. Given a choice (imagine you are dieting), would you like to consume chocolate cake (your favorite one) or raw vegetables. You can pick only one out that. What will you choose? Both are available at free of cost. Will you pick up veggies or will you prefer chocolate cake?. Think about it. I don’t really know what you are going to pick up. Yet this is what you really face everyday, you want to work hard and reduce your weight and get fit. View full article »
இறுதி சுற்று படம் பற்றிய விமர்சனத்தை நான் இங்கு எழுத முயற்சிக்கவில்லை. ஆகையால் நீங்க அதை தேடி இந்த பக்கத்திற்கு வந்து இருந்தால் என்னை மன்னிக்கவும். ஒரு படத்திற்கு எதற்கு தடை விதிக்க வேண்டும் என்ற கேள்வி பலரில் உள்ளது. நான் கல்லூரியில் நுகர்வோர் மனநிலையும் அவர்களுடைய குணம் பற்றி பாடம் எடுக்கின்றேன், அந்த வகுப்பில் நான் கலாச்சாரம் அதை ஒட்டிய வணிகம் என்ற தலைப்பை பற்றி பேசும் பொழுது, திரைப்படம் ஒரு பங்கு வகிக்கின்றது. என்ன அது? . ஒரு ஊரின் கலாச்சாரத்தை அறிந்து கொள்ள வேண்டும் எனில், அந்த ஊரில் இருக்கும் மக்களை நன்கு அறிந்துகொள்ள வேண்டும். அதே நேரத்தில் அவர்கள் பார்க்கும் ஊடகங்களை நன்கு ஆராய்ச்சிக்கு உட்படுத்த வேண்டும். அந்த ஊடகம் நிச்சயமாக மக்களின் கலாச்சாரத்தை வெளிபடுத்தும் என்பது தான் அந்த பாடத்தின் முடிவு. ஆக ஒரு படம், கலாச்சார சீர்கேட்டை பதிக்கும் ஆயின் பிற்காலத்தில் அவை தான் தமிழ் நாட்டின் கலாச்சாரம் என்ற முடிவுக்கு வந்துவிடுவார்கள் நம் சந்ததியினர்.
சரி, இப்பொழுது படத்தை பற்றி. படம் பார்த்த பிறகு என்னுள் சில சிந்தனை ஓட்டம், ஒரு ஆசிரியனை (பயிற்சியாளரை) சுதா அவர்கள் சித்தரித்த விதம் எனக்கு பிடித்து இருந்தது. என்னவெல்லாம் பிடித்திருந்தது என்று பார்ப்போம்.
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Happy May day to everyone. Today I posted a status in the Facebook which caused a stir in just five hours. The status was not meant to hurt anyone feelings, yet to make clear that actors are not demigods and they don’t contribute to you and your life. Here is the Facebook status.
“People who celebrate Actor Ajith birthday and Kabali teaser release are the ones who don’t celebrate their parents birthday” View full article »
Mr. Muralitharan is my student who worked for Photon Infotech (as Business Development Executive) for a year and three months and he is going to join 4i apps soon as Pre Sales Executive. This guy normally questions me in the class and ask doubts for which I was not able to reply most of the times. With his own effort and hard work he got placed in Photon Infotech. He came back to college today to get his degree certificate.
Inbetween, today we had a small conversation on what students should to gain and understand to get into the right career. Murali himself has transformed into a seasoned professional. I think the corporate world certainly does better than the academics or may be we can call that as maturity also. He wanted to share few things to the students who are going to complete their studies, I’m putting it here for everyone to read. View full article »
Ten months ago, two people create an awareness on why anger is required for people. One is Kailash Satyarthi and another person is Barack Obama. Anger is evil for your health, please control your anger and so on are the advises given by your elders and care takers. Kailash Satyarthi, child right activist who has rescued more than 85,000 kids delivered a speech at TED conference and said the purpose of anger. Barack obama at White House Correspondence had an anger translator to create an awareness among everyone about “Why we need to worry about Climate Change”.
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சமர்ப்பணம் செய்வதே காதல்!