National exercise rate, A researcher believes that the

National exercise rate

Reference no: EM13496921

A researcher believes that the percentage of people who exercise in California is greater than the national exercise rate. The national rate is 20%. The researcher gathers a random sample of 120 individuals who live in California and finds that the number who exercise is 31 out of 120.

a. What is X^2obt?
b. What is df for this test?
c. What is X^2cv?
d. What conclusion should be dran from these results?

Reference no: EM13496921

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