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A researcher believes that the percentage of people who

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A researcher believes that the percentage of people who exercise in California is greater than the nation 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 regularly is 31 out of 120.

a. What is the x² obt?

b. What is df for this test?

c. What is x² cv?

d. What conclusion should be drawn from these results?

Reference no: EM13578972

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