Soal SMA · Soal cerita · Kesulitan 4/5
A researcher claims that a new drug reduces recovery time from a cold. In a trial, 100 patients received the drug and 100 received a placebo. The drug group recovered in an average of 5 days, while the placebo group recovered in 5.5 days. The difference was not statistically significant. What should the researcher conclude?
- A.The drug is effective because the average recovery time was shorter.
- B.The drug is not effective because the difference was not statistically significant.
- C.The drug is effective for some patients but not others.
- D.The trial was flawed because the difference was small.
Kunci jawaban & pembahasan
Jawaban: The drug is not effective because the difference was not statistically significant.
A non-significant result suggests the observed difference could be due to chance, so there is insufficient evidence to claim effectiveness.
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