Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterval E Click the icon to view at distribution table....

Extracted text: Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterval E Click the icon to view at distribution table. (13.046,22.15) X= 17 598 Sx = 16.01712719 n= 50 a. What is the number of degrees of freedom that should be used for finding the critical value t2? df = (Type a whole number.)