"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 firstname.lastname@example.org or call me 95001 74205. Thank you - Sriram."
"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…"
"It is to be seen that an event may be said not to occur only when it is an impossible event. When you say that the probability of an event is zero, it does not say that the event will not occur. In fact the problem posted is the basic problem of one…"
"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…"
"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…"
"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…"
"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."
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:
Technical, Retired, Professor, Consultant
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