Answer:
The correct answer is: The difference was so small that it could have happened by chance even if the remedies were equivalent.
Step-by-step explanation:
The cold medicine being advertised as having faster effects on average than its competitors is actually being overpraised according to the experiment carried out. The outcome was just a small difference compared to another cold medicine so it is highly possible if the experiment was carried out with two samples of the same medicine the outcome would have been the same.