"This is for Prof.K.Kalyanaraman - Sir, We are a small team of Data Science
professionals working for a software company here in Chennai. We would like to contact you. Pl. email me at [email protected] or call me 95001 74205. Thank you - Sriram."
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"Prediction and Statistical inference are two different issues. Robustness is concerned with parameter estimates through least square methods; the resulting sampling distributions of the estimators do not vary much even if linearity is violated to…"
"In continuation to my comments, I append a data set with 4 variables; Y explained variable and X1, X2 and X3 explanatory variables. Try to generate all possible regressions i.e., Y on X1; Y on X2; Y on X3; Y on X1, X2; Y on X1, X3; Y on X2,X3; Y on…"
"It is good to see people have started seriously with statistical methods. In fact al most all statistical techniques are Linear. Moreover, linear regression is a conditional procedure; conditional on data. In fact the definition itself says "…"
"I completely agree with you. Business Analytics content/scope has potential for full fledged discipline/curriculum may vary from Diploma to masters with duration of 10 to 24 Months. I am collecting relevance content to coin this idea to…"
"Correlation is one of the more misused methods in data analysis. In all the above cases correlation has no meaning"
"It seems that the distribution is positively skewed; seen from details given by you. Then use the data to fit a Gamma Distribution using say Method of moments or MLE. Once getting the parameters, they may give some information and the associated…"
"That is true. The two tests, test for proportion and Chisquare goodness of fit are one and the same in these cases.
P = 0.5
Assume sample size 100 and males are 45 and females are 55.
Test for proportion Z =…"
"As it stands that it may be possible to generate such a system. May be it takes some time before making a sketch. However, will this be a useful effort as there are specific laws protecting everyone and demands human intervention? May be this is an…"
"Observe the histogram for claim severity and verify whether the model can be used. Or provide more information about mean, median and standard deviation of claim severity."
"The two groups are to be compared for gender, a categorical variable in Nominal scale. The associated hypothesis may be any of the following depending upon observed proportions of male/female and the problem. If the problem is to compare the general…"
"You may attempt with Box Cox transformation. vide Wikipedia."
"Please look at your question. There are two categories and you want to see if there is any difference between them, but with respect to what! Please say more about what you measure with the items in each group."
Business Analytics:Management, Computer Applications and Statistics
There are many discussions on the topic Business Analytics. A perusal of some of them gives an impression that BA is a subject related to Statistical Methds. I think that it includes a lot of subjects which could be broadly classified into three major headings: Management,Computer Applications and Statistical Methods. Thre seems to be no efforts to organize them formally. There are topics - Analytic Application, Balanced Scorecard, Cube, Dashboard, Data Mart, Data Mining, Data Warehouse,…See More
"In my view it is due to wrong perception of what a model is. Take the definition, study their feasibility with the assumptions required and define the problem first. I include a small listing of possible situations, which can be used to add, delete…"
"Under some very general assumptions the probability may be converted into a risk score ranging from 0 to 1000. The main assumption to be considered is that the risk score(RS) is Normally Distributed. (!) Then, mean will be in the middle, say 500,…"
Profile Information
- Short Bio:
- Graduated in Statistics from Madras University served as a professor in the Department of Statistics, University of Kerala, Trivandrum for about 35 years. Currently in Chennai and periodically visiting different institutes in Kerala and Tamil Nadu to teach QT and RM. Have exposure to computers from 1972 onwards. Guided a number of Researchers for their statistical data analysis requirements and produced number of research papers and monographs.
- Field of Expertise:
- Business Analytics, Predictive Modeling, Data Mining, Biostatistics, Operations Research, Quant, Econometrics, Statistical Programming, Statistical Consulting, Medical Statistics, Environmental Statistics, Artificial Intelligence
- Years of Experience in Analytical Role:
- 40 years
- Professional Status:
- Technical, Retired, Professor, Consultant
- Interests:
- Other
- Your Company:
- private
- Industry:
- education
- How did you find out about AnalyticBridge?
- from Krishnamurthy Prabhakar
Comment Wall (3 comments)
- At 9:33pm on January 14, 2013,
Sriram said… This is for Prof.K.Kalyanaraman - Sir, We are a small team of Data Science
professionals working for a software company here in Chennai. We would like to contact you. Pl. email me at [email protected] or call me 95001 74205. Thank you - Sriram.
- At 10:05am on September 24, 2010,
Rajesh Viswanath said…
- Thank you prof...
- At 11:21am on August 3, 2010,
Hareesh Ramanathan said…
- Thank you sir
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