Albert, a work performance analyst wants to know if an employee's experience influences the quality of his work. He selects 30 government employees at random and records their years of work experience and their work quality rating (as assessed by their supervisors). These data is presented one the table below, (column 1 = work experience in years, and column 2 = quality rating where 5=excellent, 4=very good, 3=average, 2=fair, 1=needs improvement). Can we infer from these data that years of work experience is a factor in determining the quality of work personnel?

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