With very little we fine-tune a lot
Confidence interval and sample size. The characteristics of the standard error of a proportion allow us to make with confidence precise inferences without the need of very large samples.
Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
Category Statistics
Another about coins
Conditional probability. Sometimes the initial probability can change if we have certain information. This is what is called conditional probability.
The deception of intuition
Combinatory and probability. An example of the use of combinatory is presented to obtain the possible and total events to calculate the probability of that event.
Meat or fish?
Mean or median? Mean and median are two measures of centralization. It is discussed in which situations it is preferable to use one or the other to describe data.
The same old story
Hypothesis contrast. The steps of hypothesis contrast are reviewed: null and alternative hypotheses, choice of statistic, calculation of the p-value and decision.