determine the type of bias involved. a math d...
determine the type of bias involved. a math department chair wants to determine the effectiveness of online homework systems. she emails a questionnaire to 300 college algebra students. 70% of the students who completed the questionnaire felt the online homework was very helpful. 20 students returned the questionnaire. the primary type of bias involved in the given information is (choose one) bias. self - interest social acceptability nonresponse voluntary response
Answer
# Brief Explanations:
Only 20 out of 300 students returned the questionnaire. Non - response bias occurs when individuals selected for a survey do not respond, potentially leading to a non - representative sample. Here, the opinions of the 280 non - respondents are unknown and could be different from those who responded.
# Answer:
nonresponse