Exercise 4-7 (Algo) (LO4-2) The Thomas Supply Company Inc. is a distributor of gas-powered generators. As with any business, the length of time customers take to pay their invoices is important. Listed below, arranged from smallest to largest, is the time, in days, for a sample of the Thomas Supply Company Inc. invoices. 13 13 13 20 26 28 29 33 34 34 35 35 36 37 38 41 41 41 42 45 47 47 48 51 54 55 56 62 67 82 Click here for the Excel Data File (Round your answers to 2 decimal places.) a. Determine the first and third quartiles. First quartile Third quartile b. Determine the second decile and the eighth decile