From the one-day work absences during the past year, the personnel director for a large firm has identified the day of week for a random sample of 150 of the absences. Given the following observed frequencies, and if we are to conclude that one-day absences during the various days of the week are not equally likelyat 0.01 level of significance, what is the degree of freedom? Monday Tuesday Wednesday Thursday Friday Total 42 18 24 27 39 150