as soon as possible please

Exercise 3-67 The Thomas Supply Company Inc. is a distributor of small electrical motors. 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: 12 16 12 46 12 46 18 54 23 54 31 31 29 54 31 58 40 46 35 71 35 75 36 79 62 66 43 90 87 Note: Use table method from as per textbook and not MegaStat to solve. a. Determine the first and third quartiles. (Round the final answers to 2 decimal places.) Q1 Q3 b. Determine the second and eighth deciles. (Round the final answers to 2 decimal places.) D2 D8 c. Determine the 67th percentile (Round the final answer to the nearest whole number.) P67 Exercise 3-74 Determine the mean, median, and standard deviation of the following frequency distribution: (Round the final answers to 2 decimal places.) Frequency 5 Class O to under 5 5 to under 10 10 to under 15 15 to under 20 20 to under 25 17 noom Mean Median Standard deviation