**What is Statistical Hypothesis?**

**The assumption about the population parameter is known as the statistical hypothesis. E.g. if a researcher assumes that the mean annual salary of all the engineers in U.S.A. is $45000 then it is a statistical hypothesis.**

**What is Hypothesis Testing?**

**The formal procedure using which the researchers accept or reject a statistical hypothesis is known as hypothesis testing. E.g. if we go by the last example then if a researcher conducts a study to verify whether the assumption of the population of engineers in U.S.A. earns a mean annual salary of $45000 or not then the researcher is said to be conducting a hypothesis test.**