Chi-square test for independence
The chi-square test for independence allows us to compare the proportions of two qualitative variables to see if they are related
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Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
Student’s t test for independent samples
Step by Step. Student’s t test for independent samples. Student’s t test allows comparing two independent means with small samples and without knowing the population variance.
Probability calculations with a normal distribution
Step by Step. Probability calculations with a normal distribution. A series of examples of how to do probability calculations with a normal distribution are shown, as well as the advantages of standardizing the data.
The brewer
Student’s t distribution. Student’s t probability distribution allows estimating the value of the population mean of a random variable that follows a normal distribution when the parameter is extracted from a small sample and the population variance is unknown. Something…
Like life itself
Pragmatic clinical trial. We all know how difficult it is to make a new drug available to people who can benefit from it. From the moment a promising molecule is identified and somebody thinks that it may be useful, until…