## Explaining what is P-value and how to calculate it

Definition By definition the P-value is a measure of the probability of obtaining a result that is different from the null hypothesis. The Null Hypotheis is the hypothesis that the result is the same as the one we are testing, in other words, the hypothesis that nothing has changed. The P-value is a number between 0 and 1. The closer to 0 the p-value is, the more likely the result is to be different from the null hypothesis....