A researcher interested in the psychological study of beauty believes that children with a higher number of facial assymetries are scolded at a different rate from children without facial assymetries. It is known that in an academic year, first graders without facial asymetries are scolded [4 = 11 times with a = 4. A random sample of 15 first-grade children with facial assymetries are observed over the course of a year. The data below represent the number of scoldings each child received over the course of the academic year: 7,15,14, 11, 1o, 11, 1o, 6, 9, 9, 8, 3, 6, 8, 7 A. What is z-obtained for this sample? : 1232's: Tries 0/10 B. Using an alpha of .05, what is the appropriate conclusion? (Please choose ALL answers necessary to draw a complete conclusion) Fail to reject the null hypothesis. Accept the null hypothesis. Facial assymetries appear to be associated with a lower frequency of scoldings a rst-grade child receives from teachers. Facial assymetries have no statistically significant effect on the number of scoldings a rst-grade child receives from teachers. Reject the null hypothesis. Facial assymetries appear to be associated with a higher frequency of scoldings a first-grade child receives from teachers. $355.5: Tries 0/5