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I require assistance for a study hypothesis and statistical analysis plan for the below. (1) Research question : To find time to stop bleeding with use of product. (2) Data Collection : Time take to stop bleeding will be captured with use of a stop watch. Eg. Patient 1= 5 minutes; Patient 2 =...

What is effect size and how to calculate for a single group study?

Null Hypothesis : Mean of Intra-subject Time to Haemostasis (TTH) = > 10 min Alternate Hypothesis : Mean of Intra-subject Time to Haemostasis (TTH) </= 10 min Sample Size : = 70 I have TTH values for all the 70 samples as performed during the study. I calculated values for (TTH - 10) for all...

Please help to know online software to perform Independent t -tests and Pearson's correlation.

Please help to know Online Calculator for Sample Size Calculation for Clinical Study.

I am performing Independent sample t-test to compare the means of haemostasis time (primary endpoint) between independent categorical variables like gender, diabetic, non-diabetic. And also comparing to check if it is related to the outcome rebreeding / no-rebleeding. Total study population is...

How to calculate sample size for cohort feasibility study? I use the online tool: http://clincalc.com/Stats/SampleSize.aspx Any other options available? Please suggest.

We are in process of analysing data of a Randomised controlled study. It is challenging to compare the primary endpoints due to difference in methodologies followed in the study & control groups. In our study, we could determine that was no difference in the pre-test parameters within the...