Standard error?

Question

I've been given as assignment with lots of data to interpret and one column includes the standard error. What is this? And how can it be used in a write-up?

Thanks in advance

Answer 1

Here's what a standard error is: http://www.reference.com/browse/wiki/Standard_error_%28statistics%29

It helps in statistical analyses because it gives the reader an idea of the range for which the data is being interpreted... or how accurate or significant the data is within that range. If the SE is a large range, the data will be perceived as less significant (less probable).

Answer 2

In statistics, the standard error of a measurement, value or quantity is the estimated standard deviation of the process by which it was generated, after adjusting for sample size. In other words the standard error is the standard deviation of the sampling distribution of the sample statistic (such as sample mean, sample proportion or sample correlation).

see http://en.wikipedia.org/wiki/Standard_error_%28statistics%29 for more information on this subject.

Good Luck!!!

Answer 3

Standard error is a (somewhat hard to understand) aspect of Statistics that applies to one particular measurement. For your data, this value will be:

Sigma divided by the square root of n.

Answer 4

standard error of mean = standard deviation/square root(n)


It is hoped that the sample data reflects the population data.
It's a way of measuring it.

Answer 5

Definition: root advise sq. blunders is done by: a million. calculating the sq. of the deviations of issues from their authentic position 2. summing up the measurements 3. and then dividing by the completed form of issues 4. and then taking the sq. root of the answer i.e. enable mistakes be e1,e2, e3, e4 ,e5 ................en then rms blunders={(e1^2+e2^2+e3^2.....................