18. (3 marks). An advertising campaign aimed at promoting a new brand of laptop to university
students was being designed when the Marketers decided they needed to investigate how different
wording options may influence consumer perceptions.
The Marketers recruited 100 university students into their study by posting flyers around the
campus of one university, and selecting the first 100 students that responded. They then ran-
domly assigned 50 students to read Campaign A, while the other 50 students to read Campaign
B. All students were then asked whether or not they would likely buy this brand of laptop.
(a) Was this an observational study or a designed experiment?
Justify your response
sources of bias that may influence the results of this study.
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