Syamkumar R

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Questions related from Syamkumar R

Difficulty in interpreting the Post hoc test: Two-way ANOVA shows no interaction, but post hoc does. What to do?

Two-way ANOVA on a dataset (codes and results given below) showed no interaction. However, the post hoc output from lsmean package showed a compact letter display which sounds like there is an...

10 October 2016 2,986 14 View

Is it right to use REPEATED MEASURES ANOVA for SEASONS X STATIONS effect ?

Is it right to use REPEATED MEASURES ANOVA to analyse a dataset with a variable "y" (eg. growth rate) measured during three seasons from two stations (with random replicates from each station)?.

10 October 2016 2,691 6 View

Which statistical method should I use ?

I have a data set containing root, shoot and seedling growth measurements from 5 treatment groups (at different concentrations, 3 replicates) including control. There were no separate control...

07 July 2016 8,844 5 View

What should be the bed weight of an SPE column to extract 800 mg/L phenol from 100 ml of sample ?

a) What should be the bed weight of an SPE column to completely extract phenol from a sample containing 800 mg/L (100 ml volume) of Phenol? Since the phenol concentration is high in the solution,...

09 September 2015 2,808 0 View

Is there any simplified and inexpensive method to 'make a C18 SPE (Solid Phase Extraction) column yourself '?

Solid Phase Extraction column is an inevitable tool for those who are dealing with molecular biology and environmental analysis. However, it is becoming increasingly expensive to avail of such a...

01 January 2014 3,419 5 View