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TEST STATISTIC

•    Wheneyer we wish to test a nuli hyp⁵, a question arise that on which basis you are going to test a particular nuli hyp⁵?

•    A sample-statistic that provides the basis for testing any nuli hyp^s is called test-statistic.

•    Each & every test-statistic has its own prob-disf¹, such as t-disf¹, F-dist¹ Z-dist¹ and x²-distⁿ

Key-Point: The duty of test-statistic doesn't to prove the nuli hyp⁵, it proyides the eyidence against null-hyp⁵.    >^/

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