1.Confidence Intervals Find Z2 to 3 decimal places. Include a sketch labeling the area in confidence and the tail areas. a) 80% Z2 = ________ b) 90% Z2 = ________ c) 96% Z2 = ________ II. Percentiles Find Z to 3 decimals. Include a sketch labeling the two areas separated by Z. a) 80th Percentile. Z = ________ b) 92nd Percentile. Z = ________