The blood vessels shrink so that less blood with leak out of the wound, platelets ( tiny cells in the blood) stick together around the wound which stop the bleeding (like patching a leak). The blood proteins and platelets join together and form a clot, the clot acts like a mesh to stop the bleeding.
Answer: This is because they are less powerful than parametric procedures.
Explanation:
Non-parametric procedures are not as powerful as parametric procedures. Non-parametric procedures do not depend on assumptions about the shape or form of the probability distribution from which the data is extracted. A parametric test has more statistical power than non-parametric test. Some conditions of validity are required for the result of a parametric test to be reliable
