The Sampling Autopsy
Examine each sample. Diagnose what went wrong.
Dr. Floe
“Every number tells a story — but only if the sample was taken honestly. Let's examine four cases from the station archives.”
0 correct0 attempted4 cases
Case 1 of 4
Case #1: The Lunchtime Survey
To estimate average daily outdoor fieldwork hours, a station administrator surveyed 20 researchers they found in the cafeteria during the 1:00 PM lunch break.
n = 20
What type of sampling was used?