Suppose that X1,...,Xn form a random sample from the normal distribution with unknown mean and known variance is 1,

Tuesday, April 11 h • Example 5: Smiles and Leniency (skip for today) A study examined the effect of a smile on the leniency of disciplinary action for wrongdoers. Participants in the experiment took on the role of members of a college disciplinary panel judging students accused of cheating. For each accused student, along with a description of the offense, a picture was provided with either a smile (n = 34)1 or a neutral facial expression (n = 34). A leniency