A large corporation is interested in determining whether a relationship exists between the commuting time of its employees and the level of stress-related problems observed on the job. A study of 116 workers reveals the following:

a. At the 0.01 level of significance, is there evidence of a significant relationship between commuting time and stress level?
b. What is your answer to (a) if you use the 0.05 level of significance

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STRESS LEVEL COMMUTING TIME High Moderate Low Total 18 32 8 28 53 7 31 53 116 Under 15 min. 15-45 min. Over 45 min. Total 17 18 19