What do you mean by p-value?

  • The p-value is the probability value which is used to determine the statistical significance in a hypothesis test.
  • Hypothesis tests are used to check the validity of the null hypothesis (claim).
  • P-values can be calculated using p-value tables or statistical software.
  • The p-values lies between 0 and 1. It can have mainly two cases:
    • (p-value<0.05): A small p-value indicates strong evidence against the null hypothesis, so we can reject the null hypothesis.
    • (p-value>0.05): A large p-value indicates weak evidence against the null hypothesis, so we consider the null hypothesis as true.
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