What was the Mita system? A.
a practice of paying taxes through labor

B.
a method of record keeping

C.
a network of royal messengers

D.
a rigid social hierarchy

2) based on the information, which is an opinion rather than a fact about immigrants to north america? immigrants

Thomas more's fictional text about a society governed by reason and order is most likely a response to the conflict between a)the king and church leaders b)male and female leaders c)rulers of other nations d)royalty and the working class

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.