Dhruba Das

11 Questions 40 Answers 0 Followers

Questions related from Dhruba Das

Can anyone explain me in details what is the form of data and their structures ?

Actually I know about the qualitative and quantitative data but in case, if somebody ask what is the form of data and their structures then what will be the answer for that.

10 October 2014 5,278 8 View

In parametric inference, the necessary and sufficient condition that T is MVUE of Ѱ(Ө), is given by COV(T, U_0)= 0, where E(U_0)=0?

Suppose X ~ N(µ, σ^2), then we may have found that the sample mean is unbiased and also the MVUE for population mean µ and hence COV(sample mean, U_0)=0, where U_0 means E(U_0)=0. Now If I...

05 May 2014 5,798 12 View

In SPSS what test do I use to examine if there is gender discrimination in designation and salary if my sample size is 100?

If the sample size is less then we can perform t- test, but for large sample what test I have to perform?

05 May 2014 3,016 12 View

What is meant by a parametric function in statistical inference?

In statistical inference our aim is to study the population characteristic that is the parameter. But if it is said that 'T' is an estimator of the function 'Ѱ(ϴ)' (which is of interest) then what...

04 April 2014 10,048 7 View

In numerical analysis, is it possible to use central difference formula to obtain the divided difference?

Uging Lagranges formula it can be obtain, but how to proceed using the central difference formula.

04 April 2014 5,798 9 View

Can anybody explain me the consistent estimator to me?

Generally, it happens that when sample size increases, the statistics will give better results about the parameters. When the sample size=population size, then sample statistic=population...

03 March 2014 4,564 20 View

If X > Y, and X, Y belongs to R, then is there any dependency between X and Y?

If so, which one is the dependent and which one is independent? If x+y= 1 => x = 1- y, x, y belongs to R, then y is independent and x is dependent. But in case of x > y, how we have to define the...

03 March 2014 5,298 11 View

What is the basic difference between the maximum likelihood estimator and the least square estimator?

In statistics when we go for estimating parameters, sometimes least square estimator is used and sometimes m. l. e. is used. Which one is better and when it can be applied?

02 February 2014 8,011 71 View

What is the difference between the difference equation and a differential equation?

There are two types of equations, one is difference equation and the other one is differential equation. The difference equation, which is we get in the calculus of finite differences. Actually...

02 February 2014 1,185 6 View

Can anyone provide the mathematical proof of 0! = 1 (zero factorial is equal to one)?

I have not found in any book by what procedure the value of zero factorial occurs. If there is any mathematical proof in any book please suggest it.

01 January 2014 2,706 32 View

Is there any difference between uniformly minimum-variance unbiased estimators and minimum-variance unbiased estimators?

In books it has been written that these two terms are same. If so, why is the term 'uniform' used in one and not the other?

11 November 2013 889 2 View