onsider the following data set: 7, 7, 0, 4, 5, 5, 3, 4, 6, 6, 4, 0. (a) Find the five-number summary and the IQR. Min 0 Q 1 3.25 Median 4.5 Q3 6 Max 7 IOR 2.75 (b) Calculate x and s. (Round your standard deviation to three decimal places.) X = 4.250 S = 2.340 (c) Calculate the z-score for the smallest and largest observations. (Round your answers to two decimal places.) z-score for smaller observation z = 1.32 X z-score for larger observation Z = 1.18