Consider a sample with data values of 10, 20, 12, 17, and 16.Compute the z-score for each of the five observations (to2 decimals). Observed valuez-score1020121716 Solution mean = (10+20+12+17+16)/5=15 standard deviation = 4 (based on the data) Z-score = (X-mean)/standard deviationObserved ValueZ-score10(10-15)/4 =-1.2520(20- 15)/4=1.2512(12-15)/4=-0.7517(17-15)/4=0.516(16-15)/4=0.25.