What are the degrees of freedom in statistics?

Degrees of freedom have a very important role in calculating the ANOVA table, what is the meaning of df, and why calculated n-1?

27 September 2019 5,266 3 View

For predicting future land use change, how to identify the end point of prediction time if the starting point is 2010? Is there any standard ?

I saw many studies have been done to predict future land use change around the world. Choosing the starting points of prediction time relies on the updated land use map. However, there is no...

16 October 2017 504 3 View

Any book or report suggestions in the field of early childhood care and education practitioners pursuing education?

I am currently researching FETAC qualifications and the pursuing of education to degree level

21 February 2017 3,328 3 View

What is the experimental design ?

17 January 2017 7,045 3 View

How to compare the interaction means?

In statistics, when you have an significant interaction between two variables (for exemple concentration and variety). You run an ANOVA test and concentration x variety is significant. How to...

09 June 2016 6,115 5 View

How to quantify and mesure Na+ ,Cl-, K+ in plant tissues?

22 January 2016 4,375 6 View

How can I fit a differential equation to a set of data?

12 December 2015 5,699 8 View

How do I analyze my data in SPSS?

28 July 2015 4,816 11 View

Where can I purchase BON cell Line?

Looking to do research with serotonin producing cell. Does anyone have suggestions to which cell lines to use. It seems that BON was used before, but I am having hard time finding it.

15 April 2015 2,919 4 View

Can anyone send me viable seeds of Sesamum indicum?

I need seeds of Sesamum indicum, because I am actually working on improving salt tolerance of this species by biotechnology (in vitro regeneration). I would be grateful, because we don't cultivate...

10 February 2015 8,450 7 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

Which is the most convenient manufacturing software for Additive Manufacturing?

Which tools can be used to generate machine codes for additive manufacturing?

02 March 2021 7,220 2 View

Research on Supply Chain Management in Indian context?

Hi, I am planning to apply for the PhD degree in the Supply Chain Mgt. with specific area of "Cold Storage warehouses" during Pandemics and wars. Where lock downs and shut downs are frequent....

02 March 2021 285 2 View

No title

Does anyone have the experience of using Taq Man probes in the QIAGEN Rotar- Gene qPCR machine?

01 March 2021 5,311 1 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

EMSA troubleshooting. Protein-DNA complex not migrating, cold probe lane with multiple bands. Can anyone help?

I'm running an EMSA to show the DNA binding activity of recombinant proteins versus the Wild type. Previous assays run by my research group using a different test system show the protein-DNA...

24 February 2021 8,325 1 View