A municipal supervisor complains that refuse removal is hampered by the absentee rates of municipal garage mechanics. She argues that mechanics in the municipal garage have higher absentee rates than refuse workers, which hampers refuse removal. You are a city manager tasked with investigating the complaint; specifically, if municipal garage absentee rates or higher than refuse workers. The municipal garage has 35 full-time employees. The annual absentee rate is 7, with a standard deviation of 2.5. There are 50 refuse workers who have average absentee rate of 6.5, with a standard deviation of 1.7. You are willing to conduct your analysis within a 95% alpha. Question: What are the degrees of freedom? Group of answer choices 85 50 83 35