Petra emailed a questionnaire to her teacher colleagues about general student…
MATHEMATICS · Multi-part · AP · AP Statistics · Collecting Data · Collecting Data
Problem
Petra emailed a questionnaire to her teacher colleagues about general student behaviour in their classes.
(1) Explain why Petra's questionnaire may produce a high non-response error.
(2) Of the 20 teachers who were emailed the questionnaire, 10 responded. Petra decides to use these 10 responses as her sample. Explain why Petra is likely to encounter a coverage error.