Please help!
For question #1, sketch a Normal curve to model the situation and find each
percentage. SHOW WORK FOR ALL!
1. A bookstore has determined that weekly sales of a pop culture magazine can be
modeled by an approximately Normal distribution with a mean of 75 copies and a
standard deviation of 6 copies.
a) For what percentage of the weeks can the store expect to sell between 70 and 85
copies of the magazine?

b) For what percentage of the weeks can the store expect to sell less than 66
magazines?

c) If the bookstore stocks 86 copies of the magazine, for what percentage of weeks
will there be an insufficient number of copies to meet demand?

In a study of the relationship between socio-economic class and unethical behavior, 129 university of california undergraduates at berkeley were asked to identify themselves as having low or high social-class by comparing themselves to others with the most (least) money, most (least) education, and most (least) respected jobs. they were also presented with a jar of individually wrapped candies and informed that the candies were for children in a nearby laboratory, but that they could take some if they wanted. after completing some unrelated tasks, participants reported the number of candies they had taken. it was found that those who were identiď¬ed as upper-class took more candy than others. in this study, identify: (a) the cases, (b) the variables and their types, (c) the main research question, (d) identify the population of interest and the sample in this study, and (e) comment on whether or not the results of the study can be generalized to the population, and if the ď¬ndings of the study can be used to establish causal relationships.