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
Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
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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…