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Null hypothesis (Ho):- It is a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is a statement of “No Difference”. It is a statement we are testing in order to determine whether or not that statement is true. The observed difference is purely by chance and there is no special cause for the difference. Alternative Hypothesis (Ha):- Hypothesis which states that there is statistical significance between the two variables in the hyphothesis. It is a statement of “difference”. It states that there is real effect and the observations are affected by the effect and some pure chance variations. Example:- A person reaching his office through a route 1, after some days he takes another route 2. We have recorded time taken for a person to reach his office. Ho:- there is no difference in time taken to reach the office from route 1 and route 2. Ha:- There is statistical difference in the time taken to reach the office from route 1 and route 2. There is no situation in which Ho becomes and Ha and vice versa. Ho statement always has the words “No Difference”. While Ha statements will always have “statistical difference” words.