Suppose a surveyor wants to conduct a phone survey about a new cleanser. he plans to take a simple random sample. however, some people do not want to participate. do you believe this can affect the ability of the surveyor to obtain accurate polling results? if so, how?
a.) yes, it keeps the people who are less informed from introducing bias to your survey.
b.) yes, it allows you to better target your intended demographic.
c.) yes, especially if the people who do not want to participatedo not want to participate
have a trait that is not accurately represented by the remaining people in the class.
d.) no, this does not affect your ability to obtain accurate polling results.

Why is the mayflower significant? a) it was the first written document forbidding colonists from voting directly on laws. b) it was the first document that did not recognize citizen’s right c) it was the first written expression of citizen’s rights by the colonists d) it was the first government documents not created by the colonists

Hurrry plzzz 16 pointsssss which major economic activity in the middle east occurs largely in the areas circled on the map above? a. coal mining b. farming c. nomadic herding d. oil production

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.