You see the expression p 001 in the results section of a jo

You see the expression “p < .001” in the results section of a journal article. Does this necessarily indicate that the investigator used the very conservative level of significance a = .001 to test the null hypothesis? Explain.

Solution

SOl)

No it is not compulsory to use 0.01 level . we can use 0.01 or 0.05 or 0.1 level.