Situation and Formulas Halloween is a celebration observed in a number of countries on October 31, the eve of the Western Christian feast of All Hallows' Day. Halloween activities include trick-or-treating, attending Halloween costume parties, carving pumpkins into jack-o'-lanterns, lighting bonfires, apple bobbing, divination games, playing pranks, visiting haunted attractions, telling scary stories, and watching horror films. [Source: Wikipedia] Z-score transformation: Z-> X- X=p+Zo Mean of p: Hp-x =(1-=) Standard Deviation of p: n Confidence interval for pZ* P-P n Sample size 9- *(1-x) Test statistic for Z=> p- =(-) n 4 2 points A simple random sample of 320 people who went trick-or-treating was selected, and it was determined that 64 out of these 320 people received fruit in addition to candy. Do we have a simple random sample? No Yes -Da