A researcher believes that the percentage of people who exercisein California is

A researcher believes that the percentage of people who exercisein California is greater than the nationalexercise rate. The national rate is 20%. The researchergathers a random sample of 120 individuals who live in theCalifornia and finds that the number who exercise regularly is 31out of 120.What is X2obt?What is df for this test? Whatis X2cv? What conclusionshould be drawn from these results?